Introduce a external allocation limit....

test/cctest/test-api.cc

 // Copyright 2007-2008 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
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 6198 matching lines @@
   env->Enter();
   v8::Handle<Value> value = NestedScope(env);
   v8::Handle<String> str = value->ToString();
   env->Exit();
   env.Dispose();
 }
 
 
 THREADED_TEST(ExternalAllocatedMemory) {
   v8::HandleScope outer;
+  v8::Persistent<Context> env = Context::New();
   const int kSize = 1024*1024;
   CHECK_EQ(v8::V8::AdjustAmountOfExternalAllocatedMemory(kSize), kSize);
   CHECK_EQ(v8::V8::AdjustAmountOfExternalAllocatedMemory(-kSize), 0);
 }
 
 
 THREADED_TEST(DisposeEnteredContext) {
   v8::HandleScope scope;
   LocalContext outer;
   { v8::Persistent<v8::Context> inner = v8::Context::New();
@@ skipping 1311 matching lines @@
              "var obj = { x: { foo: 42 }, y: 87 };\n"
              "var x = obj.x;\n"
              "delete obj.y;\n"
              "for (var i = 0; i < 5; i++) f(obj);");
   // Detach the global object to make 'this' refer directly to the
   // global object (not the proxy), and make sure that the dictionary
   // load IC doesn't mess up loading directly from the global object.
   context->DetachGlobal();
   CHECK_EQ(42, CompileRun("f(this).foo")->Int32Value());
 }