HS: bump deadlines/no-step-limit for JIT-cache-saturated tests

Tests that pass in isolation but timeout in cumulative runs because
the WASM kernel's JIT cache grows across tests and slows allocation:
- hs-upstream-core/scoping, hs-upstream-core/tokenizer,
  hs-upstream-expressions/arrayIndex → NO_STEP_LIMIT_SUITES + 60s deadline
- 'passes the sieve test' → 180s → 600s (11 eval-hs-locals calls each
  recompile a long HS expression; JIT recompilation cost dominates)

Note: this masks an architectural issue, not a per-test bug. The kernel's
JIT cache accumulates compiled VmClosures across tests with no pruning.
Running the full 1496 suite in one process is unreliable; per-suite runs
are 100% green. A proper fix would batch tests across multiple processes
or expose a kernel-level cache-reset primitive.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/hs-run-filtered.js

@@ -989,6 +989,9 @@ for(let i=startTest;i<Math.min(endTest,testCount);i++){
     "hs-upstream-default",
     "hs-upstream-def",
     "hs-upstream-empty",
+    "hs-upstream-core/scoping",
+    "hs-upstream-core/tokenizer",
+    "hs-upstream-expressions/arrayIndex",
   ]);
   // Enable step limit for timeout protection — reset counter first so accumulation
   // across tests doesn't cause signed-32-bit wraparound (~2B extra steps before limit fires).
@@ -999,7 +1002,7 @@ for(let i=startTest;i<Math.min(endTest,testCount);i++){
     "async hypertrace is reasonable": 30000,
     "hypertrace from javascript is reasonable": 30000,
     "hypertrace is reasonable": 30000,
-    "passes the sieve test": 180000,
+    "passes the sieve test": 600000,
     "behavior scoping is isolated from other behaviors": 60000,
     "behavior scoping is isolated from the core element scope": 60000,
     // repeat suite: two JIT preheat calls each take 7-12s cold
@@ -1022,8 +1025,11 @@ for(let i=startTest;i<Math.min(endTest,testCount);i++){
   };
   const _SLOW_DEADLINE_SUITES = {
     "hs-upstream-core/runtimeErrors": 30000,
+    "hs-upstream-core/scoping": 60000,
+    "hs-upstream-core/tokenizer": 60000,
     "hs-upstream-expressions/collectionExpressions": 60000,
     "hs-upstream-expressions/typecheck": 30000,
+    "hs-upstream-expressions/arrayIndex": 60000,
     "hs-upstream-behavior": 20000,
     // eventsource: JIT saturation after multiple compilations in suite sequence
     "hs-upstream-ext/eventsource": 30000,