Move global V8::UseCrankshaft() into the Isolate.

test/cctest/test-random.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 51 matching lines @@
   SetSeeds(seeds, state0, state1);
   V8::FillHeapNumberWithRandom(*value, *context);
   double runtime_value = HeapNumber::cast(*value)->value();
   CHECK_EQ(runtime_value, crankshaft_value);
 }
 
 
 TEST(CrankshaftRandom) {
   v8::V8::Initialize();
   // Skip test if crankshaft is disabled.
-  if (!V8::UseCrankshaft()) return;
+  if (!Isolate::Current()->use_crankshaft()) return;
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   v8::HandleScope scope(isolate);
   v8::Context::Scope context_scope(v8::Context::New(isolate));
 
   Handle<Context> context(Isolate::Current()->context());
   Handle<JSObject> global(context->global_object());
   Handle<ByteArray> seeds(context->random_seed());
   bool has_pending_exception;
 
   CompileRun("function f() { return Math.random(); }");
@@ skipping 16 matching lines @@
 
   // Test that we bail out to runtime when seeds are uninitialized (zeros).
   SetSeeds(seeds, 0, 0);
   Handle<Object> value =
       Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(value->IsHeapNumber());
   CHECK(fun->IsOptimized());
   double crankshaft_value = HeapNumber::cast(*value)->value();
   CHECK_NE(0.0, crankshaft_value);
 }