[wasm] Managed<T> ensures T's lifetime does not leak past Isolate's

test/cctest/cctest.gyp

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
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@@ skipping 190 matching lines @@
       'test-unscopables-hidden-prototype.cc',
       'test-usecounters.cc',
       'test-utils.cc',
       'test-version.cc',
       'test-weakmaps.cc',
       'test-weaksets.cc',
       'trace-extension.cc',
       'trace-extension.h',
       'types-fuzz.h',
       'unicode-helpers.h',
-      'wasm/test-managed.cc',
       'wasm/test-run-wasm.cc',
       'wasm/test-run-wasm-64.cc',
       'wasm/test-run-wasm-asmjs.cc',
       'wasm/test-run-wasm-interpreter.cc',
       'wasm/test-run-wasm-js.cc',
       'wasm/test-run-wasm-module.cc',
       'wasm/test-run-wasm-relocation.cc',
       'wasm/test-wasm-breakpoints.cc',
       'wasm/test-wasm-stack.cc',
       'wasm/test-wasm-trap-position.cc',
@@ skipping 311 matching lines @@
             '../../gypfiles/isolate.gypi',
           ],
           'sources': [
             'cctest.isolate',
           ],
         },
       ],
     }],
   ],
 }