haskell: Phase 11 — Data.Map module wiring (import qualified ... as Map)

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

plans/haskell-completeness.md

@@ -188,7 +188,7 @@ No OCaml changes are needed. The view type is fully representable as an SX dict.
 - [x] Combining: `unionWith`, `intersectionWith`, `difference`.
 - [x] Transforming: `foldlWithKey`, `foldrWithKey`, `mapWithKey`, `filterWithKey`.
 - [x] Updating: `adjust`, `insertWith`, `insertWithKey`, `alter`.
-- [ ] Module wiring: `import Data.Map` and `import qualified Data.Map as Map`
+- [x] Module wiring: `import Data.Map` and `import qualified Data.Map as Map`
   resolve to the `map.sx` namespace dict in the eval import handler.
 - [ ] Unit tests in `lib/haskell/tests/map.sx` (≥ 20 tests: empty, singleton,
   insert + lookup hit/miss, delete root, fromList with duplicates,
@@ -304,6 +304,20 @@ No OCaml changes are needed. The view type is fully representable as an SX dict.
 
 _Newest first._
 
+**2026-05-07** — Phase 11 module wiring: `import Data.Map`:
+- Added `hk-bind-data-map!` helper in `eval.sx` that registers
+  `<alias>.empty/singleton/insert/lookup/member/size/null/delete` as Haskell
+  builtins. Default alias is `"Map"`.
+- New `:import` case in `hk-bind-decls!` dispatches to `hk-bind-data-map!`
+  when modname = `"Data.Map"`. Also fixed `hk-eval-program` to actually
+  process the imports list (was extracting only decls); now it calls
+  `hk-bind-decls!` once on imports, then once on decls.
+- `test.sh` and `conformance.sh` now load `lib/haskell/map.sx` after
+  `eval.sx` so the BST functions exist when the import handler binds.
+- Verified `import qualified Data.Map as Map` and `import Data.Map`
+  (default alias) resolve `Map.empty`, `Map.insert`, `Map.lookup`, `Map.size`,
+  `Map.member` correctly.
+
 **2026-05-07** — Phase 11 updating (adjust/insertWith/insertWithKey/alter):
 - `adjust` recurses to find the key, replaces value with `f(v)`; no-op when
   missing. `insertWith` and `insertWithKey` recurse with rebalance and use