W14: F10 expected-failures baseline gate (test-only)

The OCaml suite's permanent ~273-failure band (in-progress hs-* + the
r7rs radix shadow) is normalized, so real regressions hide in red noise
(conformance.md F-10). A runner skip-list would rewrite the hs loops'
scoreboards mid-flight — instead, pin the band:

scripts/test-suite-baseline.sh runs the full suite and diffs its FAIL set
against spec/tests/known-failures.txt (273 entries, identity =
"suite > name", error text stripped). Red on a NEW failure (regression)
AND red on a vanished failure (fix landed — delete it from the baseline,
locking in the win). The band still prints as FAIL lines for the teams
working through it; nothing in the runner changes.

Bonus capture: 2 of the 273 have EMPTY suite labels (can-map-an-array,
string->number) — live evidence for C9, the next checklist item.

Validated end-to-end: GREEN on current tree (5800p/273f — 38 net passes
above dc7aa709's 5762 from this loop's added pins). Runtime ~12 min.

Test-only: no semantics edits, no push.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

spec/tests/known-failures.txt

@@ -0,0 +1,273 @@
+ > can-map-an-array
+hs-compat-asExpression > converts-a-complete-form-into-values
+hs-compat-asExpression > converts-strings-into-fragments
+hs-compat-asExpression > converts-value-as-json
+hs-compat-in > basic-no-query-return-values
+hs-compat-typecheck > can-do-basic-non-string-typecheck-failure
+hs-compat-typecheck > can-do-basic-string-non-null-typecheck
+hs-compat-typecheck > can-do-basic-string-typecheck
+hs-compat-typecheck > null-causes-null-safe-string-check-to-fail
+hs-dev-asExpression > parses string as JSON to object
+hs-dev-collectionExpressions > where binds after property access
+hs-dev-comparisonOperator > I am between works
+hs-dev-comparisonOperator > I am not between works
+hs-dev-comparisonOperator > is still does equality when rhs variable exists
+hs-dev-pick > can pick first n items
+hs-dev-pick > can pick items using 'of' syntax
+hs-dev-pick > can pick last n items
+hs-dev-pick > can pick random item
+hs-dev-pick > can pick random n items
+hs-emit-classes > remove class from target
+hs-emit-control-flow > tell rebinds me
+hs-emit-def-behavior > def becomes define
+hs-emit-dom-commands > hide sets display none
+hs-emit-dom-commands > log passes through
+hs-emit-dom-commands > show clears display
+hs-emit-on > on every click
+hs-extra-function-call > identity-call
+hs-extra-lambda > array-map-block
+hs-extra-lambda > arrow-true
+hs-extra-typecheck > null-colon-string
+hs-parse-assignment > put into
+hs-parse-assignment > set property to string
+hs-parse-basic-commands > add class to me
+hs-parse-basic-commands > remove class from me
+hs-parse-basic-commands > toggle between two classes
+hs-parse-basic-commands > toggle class on me
+hs-parse-conditional > if else end
+hs-parse-conditional > if then end
+hs-parse-conformance > increment @count → full AST
+hs-parse-conformance > on click add .called → full AST
+hs-parse-conformance > on click from #bar add .clicked → full AST
+hs-parse-conformance > toggle between .foo and .bar → full AST
+hs-parse-conformance > wait 100ms then add .done → full AST
+hs-parse-events > on click add class
+hs-parse-events > on click from target
+hs-parse-every-modifier > on every click
+hs-parse-expressions > attribute ref
+hs-parse-expressions > style ref
+hs-parse-send-trigger > trigger event on me
+hs-parse-sequencing > wait then add
+hs-parse-special-commands > decrement attribute
+hs-parse-special-commands > hide
+hs-parse-special-commands > increment attribute
+hs-parse-special-commands > show target
+hs-parse-unary > not expr
+hs-runtime-e2e > source → SX shape
+hs-runtime-make > make Map returns dict
+hs-runtime-make > make Set returns list
+hs-tokenize-arithmetic-ops > division operator
+hs-tokenize-arithmetic-ops > mixed arithmetic
+hs-tokenize-arithmetic-ops > modulo operator
+hs-tokenize-arithmetic-ops > multiply operator
+hs-tokenize-basics > keywords vs identifiers
+hs-tokenize-basics > whitespace skipped
+hs-tokenize-comments > line comment skipped
+hs-tokenize-full-expressions > if true put "foo" into me.innerHTML else put "bar" into me.innerHTML end
+hs-tokenize-full-expressions > increment @count then put it into me
+hs-tokenize-full-expressions > on click add .called
+hs-tokenize-full-expressions > on click[buttons==0] log event
+hs-tokenize-full-expressions > on click from #bar add .clicked
+hs-tokenize-full-expressions > on click send custom(foo:"fromBar") to #d2
+hs-tokenize-full-expressions > put "Clicked" into my.innerHTML
+hs-tokenize-full-expressions > set #d1.innerHTML to foo
+hs-tokenize-full-expressions > toggle between .foo and .bar
+hs-tokenize-full-expressions > wait 100ms then add .done
+hs-upstream-add > can add a value to a set
+hs-upstream-add > can add to an HTMLCollection
+hs-upstream-add > can add to children
+hs-upstream-add > can add to query in me
+hs-upstream-add > supports async expressions in when clause
+hs-upstream-append > append to undefined ignores the undefined
+hs-upstream-append > can append a value to a DOM node
+hs-upstream-append > can append a value to a set
+hs-upstream-append > can append a value to I
+hs-upstream-append > multiple appends work
+hs-upstream-append > new DOM content added by append will be live
+hs-upstream-askAnswer > confirm returns first choice on OK
+hs-upstream-askAnswer > prompts and puts result in it
+hs-upstream-call > call functions that return promises are waited on
+hs-upstream-core/asyncError > rejected promise stops execution
+hs-upstream-core/asyncError > rejected promise triggers catch block
+hs-upstream-core/regressions > can invoke functions w/ numbers in name
+hs-upstream-core/regressions > can pick detail fields out by name
+hs-upstream-core/regressions > can refer to function in init blocks
+hs-upstream-core/runtimeErrors > reports basic function invocation null errors properly
+hs-upstream-core/runtimeErrors > reports basic function invocation null errors properly w/ of
+hs-upstream-core/runtimeErrors > reports basic function invocation null errors properly w/ possessives
+hs-upstream-core/runtimeErrors > reports null errors on add command properly
+hs-upstream-core/runtimeErrors > reports null errors on decrement command properly
+hs-upstream-core/runtimeErrors > reports null errors on default command properly
+hs-upstream-core/runtimeErrors > reports null errors on hide command properly
+hs-upstream-core/runtimeErrors > reports null errors on increment command properly
+hs-upstream-core/runtimeErrors > reports null errors on measure command properly
+hs-upstream-core/runtimeErrors > reports null errors on put command properly
+hs-upstream-core/runtimeErrors > reports null errors on remove command properly
+hs-upstream-core/runtimeErrors > reports null errors on send command properly
+hs-upstream-core/runtimeErrors > reports null errors on sets properly
+hs-upstream-core/runtimeErrors > reports null errors on settle command properly
+hs-upstream-core/runtimeErrors > reports null errors on show command properly
+hs-upstream-core/runtimeErrors > reports null errors on toggle command properly
+hs-upstream-core/runtimeErrors > reports null errors on transition command properly
+hs-upstream-core/runtimeErrors > reports null errors on trigger command properly
+hs-upstream-core/runtime > has proper stack from event handler
+hs-upstream-core/scoping > locally scoped variables don't clash with built-in variables
+hs-upstream-empty > can empty a map
+hs-upstream-empty > can empty an element
+hs-upstream-empty > can empty a set
+hs-upstream-empty > clear works on elements
+hs-upstream-expressions/asExpression > can accept custom dynamic conversions
+hs-upstream-expressions/asExpression > can use the a modifier if you like
+hs-upstream-expressions/asExpression > collects duplicate text inputs into an array
+hs-upstream-expressions/asExpression > converts a complete form into Values
+hs-upstream-expressions/asExpression > converts a form element into Values
+hs-upstream-expressions/asExpression > converts a form element into Values | FormEncoded
+hs-upstream-expressions/asExpression > converts a form element into Values | JSONString
+hs-upstream-expressions/asExpression > converts an element into HTML
+hs-upstream-expressions/asExpression > converts a NodeList into HTML
+hs-upstream-expressions/asExpression > converts array as Set
+hs-upstream-expressions/asExpression > converts checkboxes into a Value correctly
+hs-upstream-expressions/asExpression > converts multiple selects into a Value correctly
+hs-upstream-expressions/asExpression > converts multiple selects with programmatically changed selections
+hs-upstream-expressions/asExpression > converts object as Map
+hs-upstream-expressions/asExpression > converts radio buttons into a Value correctly
+hs-upstream-expressions/asExpression > converts value as Date
+hs-upstream-expressions/asExpression > parses string as JSON to object
+hs-upstream-expressions/asExpression > pipe operator chains conversions
+hs-upstream-expressions/blockLiteral > basic block literals work
+hs-upstream-expressions/blockLiteral > basic identity works
+hs-upstream-expressions/blockLiteral > basic two arg identity works
+hs-upstream-expressions/closest > closest does not consume a following where clause
+hs-upstream-expressions/comparisonOperator > does not exist works
+hs-upstream-expressions/cookies > basic clear cookie values work
+hs-upstream-expressions/cookies > basic set cookie values work
+hs-upstream-expressions/cookies > iterate cookies values work
+hs-upstream-expressions/cookies > length is 0 when no cookies are set
+hs-upstream-expressions/cookies > update cookie values work
+hs-upstream-expressions/functionCalls > can access a property of a call's result
+hs-upstream-expressions/functionCalls > can chain calls on the result of a call
+hs-upstream-expressions/functionCalls > can invoke function on object
+hs-upstream-expressions/functionCalls > can invoke function on object w/ async arg
+hs-upstream-expressions/functionCalls > can invoke function on object w/ async root & arg
+hs-upstream-expressions/functionCalls > can invoke global function
+hs-upstream-expressions/functionCalls > can invoke global function w/ async arg
+hs-upstream-expressions/functionCalls > can pass an array literal as an argument
+hs-upstream-expressions/functionCalls > can pass an expression as an argument
+hs-upstream-expressions/functionCalls > can pass an object literal as an argument
+hs-upstream-expressions/functionCalls > can pass no arguments
+hs-upstream-expressions/logicalOperator > and short-circuits when lhs promise resolves to false
+hs-upstream-expressions/logicalOperator > should short circuit with and expression
+hs-upstream-expressions/logicalOperator > should short circuit with or expression
+hs-upstream-expressions/mathOperator > can use mixed expressions
+hs-upstream-expressions/objectLiteral > expressions work in object literal field names
+hs-upstream-expressions/propertyAccess > property access on function result
+hs-upstream-expressions/some > some returns true for nonempty selector
+hs-upstream-expressions/strings > string templates work w/ props
+hs-upstream-expressions/strings > string templates work w/ props w/ braces
+hs-upstream-expressions/symbol > resolves global context properly
+hs-upstream-fetch > allows the event handler to change the fetch parameters
+hs-upstream-fetch > as response does not throw on 404
+hs-upstream-fetch > can catch an error that occurs when using fetch
+hs-upstream-fetch > can do a simple fetch
+hs-upstream-fetch > can do a simple fetch w/ a custom conversion
+hs-upstream-fetch > can do a simple fetch w/ a naked URL
+hs-upstream-fetch > can do a simple fetch w/ html
+hs-upstream-fetch > can do a simple fetch w/ json
+hs-upstream-fetch > can do a simple fetch w/ json using JSON syntax
+hs-upstream-fetch > can do a simple fetch w/ json using Object syntax
+hs-upstream-fetch > can do a simple fetch w/ json using Object syntax and an 'an' prefix
+hs-upstream-fetch > can do a simple post
+hs-upstream-fetch > can do a simple post alt syntax w/ curlies
+hs-upstream-fetch > can do a simple post alt syntax without curlies
+hs-upstream-fetch > can put response conversion after with
+hs-upstream-fetch > can put response conversion before with
+hs-upstream-fetch > do not throw passes through 404 response
+hs-upstream-fetch > don't throw passes through 404 response
+hs-upstream-fetch > Response can be converted to JSON via as JSON
+hs-upstream-fetch > submits the fetch parameters to the event handler
+hs-upstream-fetch > throws on non-2xx response by default
+hs-upstream-fetch > triggers an event just before fetching
+hs-upstream-hide > can hide element, with display:none by default
+hs-upstream-hide > can hide element with display:none explicitly
+hs-upstream-hide > can hide element with no target followed by command
+hs-upstream-hide > can hide element with no target followed by then
+hs-upstream-hide > can hide element with no target with a with
+hs-upstream-hide > can hide element with opacity:0
+hs-upstream-hide > can hide element with opacity style literal
+hs-upstream-hide > can hide element, with visibility:hidden
+hs-upstream-hide > can hide other elements
+hs-upstream-if > if on new line does not join w/ else
+hs-upstream-if > if properly supports nested if statements and end block
+hs-upstream-js > can do both of the above
+hs-upstream-js > can return values to _hyperscript
+hs-upstream-js > handles rejected promises without hanging
+hs-upstream-make > can make elements
+hs-upstream-make > can make elements with id and classes
+hs-upstream-make > can make named objects
+hs-upstream-make > can make named objects w/ global scope
+hs-upstream-make > can make named objects with arguments
+hs-upstream-make > can make objects
+hs-upstream-make > can make objects with arguments
+hs-upstream-make > creates a div by default
+hs-upstream-on > can catch exceptions thrown in hyperscript functions
+hs-upstream-on > can catch exceptions thrown in js functions
+hs-upstream-on > can ignore when target doesn't exist
+hs-upstream-on > can pick detail fields out by name
+hs-upstream-on > can pick event properties out by name
+hs-upstream-on > listeners on other elements are removed when the registering element is removed
+hs-upstream-on > multiple event handlers at a time are allowed to execute with the every keyword
+hs-upstream-on > on intersection fires when the element is in the viewport
+hs-upstream-on > rethrown exceptions trigger 'exception' event
+hs-upstream-on > throttled at <time> drops events within the window
+hs-upstream-put > waits on promises
+hs-upstream-remove > can remove a value from a set
+hs-upstream-repeat > can nest loops
+hs-upstream-repeat > only executes the init expression once
+hs-upstream-repeat > repeat forever works
+hs-upstream-repeat > repeat forever works w/o keyword
+hs-upstream-repeat > until keyword works
+hs-upstream-repeat > while keyword works
+hs-upstream-reset > can reset a textarea
+hs-upstream-resize > fires when element is resized
+hs-upstream-resize > on resize from window uses native window resize event
+hs-upstream-resize > provides height in detail
+hs-upstream-resize > works with from clause
+hs-upstream-select > returns selected text
+hs-upstream-send > can send events to any expression
+hs-upstream-set > set waits on promises
+hs-upstream-show > can filter over a set of elements using the its symbol
+hs-upstream-socket > converts relative URL to ws:// on http pages
+hs-upstream-socket > converts relative URL to wss:// on https pages
+hs-upstream-socket > dispatchEvent sends JSON-encoded event over the socket
+hs-upstream-socket > namespaced sockets work
+hs-upstream-socket > on message as JSON handler decodes JSON payload
+hs-upstream-socket > on message as JSON throws on non-JSON payload
+hs-upstream-socket > on message handler fires on incoming text message
+hs-upstream-socket > parses socket with absolute ws:// URL
+hs-upstream-socket > rpc proxy blacklists then/catch/length/toJSON
+hs-upstream-socket > rpc proxy default timeout rejects the promise
+hs-upstream-socket > rpc proxy noTimeout avoids timeout rejection
+hs-upstream-socket > rpc proxy reply with throw rejects the promise
+hs-upstream-socket > rpc proxy sends a message and resolves the reply
+hs-upstream-socket > rpc proxy timeout(n) rejects after a custom window
+hs-upstream-socket > rpc reconnects after the underlying socket closes
+hs-upstream-socket > with timeout parses and uses the configured timeout
+hs-upstream-swap > can swap a variable with a property
+hs-upstream-tell > works with an array
+hs-upstream-tell > your symbol represents the thing being told
+hs-upstream-toggle > can toggle display
+hs-upstream-toggle > can toggle display on other elt
+hs-upstream-toggle > can toggle display w/ my
+hs-upstream-toggle > can toggle opacity
+hs-upstream-toggle > can toggle opacity on other elt
+hs-upstream-toggle > can toggle opacity w/ my
+hs-upstream-toggle > can toggle until an event on another element
+hs-upstream-toggle > can toggle visibility
+hs-upstream-toggle > can toggle visibility on other elt
+hs-upstream-toggle > can toggle visibility w/ my
+hs-upstream-wait > can destructure properties in a wait
+hs-upstream-wait > can wait on event
+hs-upstream-wait > can wait on event on another element
+hs-upstream-wait > waiting on an event sets 'it' to the event
+hs-upstream-when > attribute observers are persistent (not recreated on re-run)
+ > string->number