Update Isolate::RequestGarbageCollection after r18691

test/cctest/test-compiler.cc

 // 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
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 214 matching lines @@
 }
 
 
 // Tests calling a builtin function from C/C++ code, and the builtin function
 // performs GC. It creates a stack frame looks like following:
 //   | C (PerformGC) |
 //   |   JS-to-C     |
 //   |      JS       |
 //   |   C-to-JS     |
 TEST(C2JSFrames) {
+  FLAG_expose_gc = true;
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Context> context =
     CcTest::NewContext(PRINT_EXTENSION | GC_EXTENSION);
   v8::Context::Scope context_scope(context);
 
   const char* source = "function foo(a) { gc(), print(a); }";
 
   Handle<JSFunction> fun0 = Compile(source);
   CHECK(!fun0.is_null());
   Isolate* isolate = fun0->GetIsolate();
@@ skipping 148 matching lines @@
   CompileRun("function f() { a = 12345678 }; f();");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
   CompileRun("function f(x) { a = 12345678 + x}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
   CompileRun("function f(x) { var arguments = 1; x += 12345678}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
   CompileRun("function f(x) { var arguments = 1; x = 12345678}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
 }
 #endif