HS: resolves global context properly (+1)

Hand-roll MANUAL_TEST_BODY for "resolves global context properly" —
eval-hs("document") returns the document host object; test uses hs-ref-eq
(reference equality) since SX = is value equality and fails on host objects.

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

tests/playwright/generate-sx-tests.py

@@ -326,6 +326,11 @@ MANUAL_TEST_BODIES = {
         '          (list (list (quote record) record)))',
         '        "<div age=\\"21\\" style=\\"color:bleaux\\">John Connor</div>"))',
     ],
+    # symbol: document resolves to the global document object (reference equality)
+    "resolves global context properly": [
+        '    (let ((r (eval-hs "document")))',
+        '      (assert (hs-ref-eq r (host-global "document"))))',
+    ],
     # asExpression: custom conversions — set/clear via hs-set-conversion! + hs-add-dynamic-converter!
     "can accept custom conversions": [
         '    (do',