[dart2wasm] Update dynamic module callable logic to more correctly exclude non-subtypes of wasm object struct.

Fixes: #60589
Change-Id: I5d74fcc7ee2f52c5efacc26c275ef1cf45264abf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/423880
Commit-Queue: Nate Biggs <[email protected]>
Reviewed-by: Ömer Ağacan <[email protected]>

Author: natebiggs

pkg/dart2wasm/lib/dynamic_modules.dart

@@ -512,9 +512,8 @@ class DynamicModuleInfo {
       } else if (member is Constructor &&
           // Skip types that don't extend Object in the wasm type hierarchy.
           // These types do not have directly invokable constructors.
-          (translator.classInfo[member.enclosingClass]!.superInfo !=
-                  translator.topInfo ||
-              member.enclosingClass == translator.coreTypes.objectClass)) {
+          translator.classInfo[member.enclosingClass]!.struct
+              .isSubtypeOf(translator.objectInfo.struct)) {
         collectCallableReference(member.reference);
         collectCallableReference(member.initializerReference);
         collectCallableReference(member.constructorBodyReference);