[turbofan] Move JSCallFunction specialization to JSCallReducer.

test/cctest/test-heap.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 3656 matching lines @@
 #endif  // OBJECT_PRINT
 
 
 TEST(IncrementalMarkingPreservesMonomorphicCallIC) {
   if (i::FLAG_always_opt) return;
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Value> fun1, fun2;
   v8::Local<v8::Context> ctx = CcTest::isolate()->GetCurrentContext();
   {
-    LocalContext env;
     CompileRun("function fun() {};");
-    fun1 = env->Global()->Get(env.local(), v8_str("fun")).ToLocalChecked();
+    fun1 = CcTest::global()->Get(ctx, v8_str("fun")).ToLocalChecked();
   }
 
   {
-    LocalContext env;
     CompileRun("function fun() {};");
-    fun2 = env->Global()->Get(env.local(), v8_str("fun")).ToLocalChecked();
+    fun2 = CcTest::global()->Get(ctx, v8_str("fun")).ToLocalChecked();
   }
 
-  // Prepare function f that contains type feedback for closures
-  // originating from two different native contexts.
+  // Prepare function f that contains type feedback for the two closures.
   CHECK(CcTest::global()->Set(ctx, v8_str("fun1"), fun1).FromJust());
   CHECK(CcTest::global()->Set(ctx, v8_str("fun2"), fun2).FromJust());
   CompileRun("function f(a, b) { a(); b(); } f(fun1, fun2);");
 
   Handle<JSFunction> f = Handle<JSFunction>::cast(
       v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
           CcTest::global()->Get(ctx, v8_str("f")).ToLocalChecked())));
 
   Handle<TypeFeedbackVector> feedback_vector(f->shared()->feedback_vector());
   FeedbackVectorHelper feedback_helper(feedback_vector);
@@ skipping 2754 matching lines @@
   isolate->IncrementJsCallsFromApiCounter();
   isolate->IncrementJsCallsFromApiCounter();
   isolate->IncrementJsCallsFromApiCounter();
   calls_per_ms = memory_reducer->SampleAndGetJsCallsPerMs(4);
   CheckDoubleEquals(2, calls_per_ms);
 }
 
 
 }  // namespace internal
 }  // namespace v8