Mark LEGACY_VM_SUPPORT as incompatible with MEMORY64 (#25183)

Even `-sMEMORY64=2` is not supported because out lowering pass doesn't
yet support it:

```
Running test_core: (1 tests)
test_embind_val_basics_legacy (test_core.wasm64l.test_embind_val_basics_legacy) ... Fatal: Memory64 and multi-memory not supported by memory.copy lowering
em++: error: '/usr/local/google/home/sbc/dev/wasm/binaryen-out/bin/wasm-opt --signext-lowering --llvm-nontrapping-fptoint-lowering --llvm-memory-copy-fill-lowering --memory64-lowering --table64-lowering test_embind_val_basics.wasm -o test_embind_val_basics.wasm -g --mvp-features --enable-bulk-memory --enable-bulk-memory-opt --enable-call-indirect-overlong --enable-memory64 --enable-multivalue --enable-mutable-globals --enable-nontrapping-float-to-int --enable-reference-types --enable-sign-ext' failed (returned 1)
None
```

Fixes: #25182

Author: sbc100

.circleci/config.yml

@@ -691,6 +691,7 @@ jobs:
             wasm64l.test_bigswitch
             wasm64l.test_module_wasm_memory
             wasm64l.test_longjmp2_emscripten
+            wasm64l.test_embind_val_basics_legacy
             other.test_failing_growth_wasm64"
       - upload-test-results
   test-jsc:

test/test_core.py

@@ -7511,8 +7511,11 @@ def test2():
     'no_dynamic': (['--bind', '-sDYNAMIC_EXECUTION=0', '-sLEGACY_VM_SUPPORT'],),
   })
   def test_embind_val_basics(self, args):
-    if '-sLEGACY_VM_SUPPORT' in args and (self.get_setting('MODULARIZE') == 'instance' or self.get_setting('WASM_ESM_INTEGRATION')):
-      self.skipTest('LEGACY_VM_SUPPORT is not compatible with EXPORT_ES6')
+    if '-sLEGACY_VM_SUPPORT':
+      if self.get_setting('MODULARIZE') == 'instance' or self.get_setting('WASM_ESM_INTEGRATION'):
+        self.skipTest('LEGACY_VM_SUPPORT is not compatible with EXPORT_ES6')
+      if self.is_wasm64():
+        self.skipTest('LEGACY_VM_SUPPORT is not compatible with wasm64')
     self.maybe_closure()
     self.do_run_in_out_file_test('embind/test_embind_val_basics.cpp', cflags=args)
 

tools/link.py

@@ -674,6 +674,7 @@ def report_incompatible_settings():
     ('GL_SUPPORT_AUTOMATIC_ENABLE_EXTENSIONS', 'NO_GL_SUPPORT_SIMPLE_ENABLE_EXTENSIONS', None),
     ('MODULARIZE', 'NODEJS_CATCH_REJECTION', None),
     ('MODULARIZE', 'NODEJS_CATCH_EXIT', None),
+    ('LEGACY_VM_SUPPORT', 'MEMORY64', None),
   ]
 
   for a, b, reason in incompatible_settings: