Cleanup in the CallStubCompiler.

src/stub-cache.cc

Index: src/stub-cache.cc
diff --git a/src/stub-cache.cc b/src/stub-cache.cc
index 631d64a6f1f816d200321a82539b93dae4fe99e8..316703b119cc31a639f9e0371ff5866bd7101dcb 100644
--- a/src/stub-cache.cc
+++ b/src/stub-cache.cc
@@ -1126,12 +1126,69 @@ void StubCompiler::LookupPostInterceptor(Handle<JSObject> holder,
 #define __ ACCESS_MASM(masm())
 
 
+CallKind CallStubCompiler::call_kind() {
+  return CallICBase::Contextual::decode(extra_state_)
+      ? CALL_AS_FUNCTION
+      : CALL_AS_METHOD;
+}
+
+
 void CallStubCompiler::HandlerFrontendFooter(Label* miss) {
   __ bind(miss);
   GenerateMissBranch();
 }
 
 
+void CallStubCompiler::GenerateJumpFunctionIgnoreReceiver(
+    Handle<JSFunction> function) {
+  ParameterCount expected(function);
+  __ InvokeFunction(function, expected, arguments(),
+                    JUMP_FUNCTION, NullCallWrapper(), call_kind());
+}
+
+
+void CallStubCompiler::GenerateJumpFunction(Handle<Object> object,
+                                            Handle<JSFunction> function) {
+  PatchGlobalProxy(object);
+  GenerateJumpFunctionIgnoreReceiver(function);
+}
+
+
+void CallStubCompiler::GenerateJumpFunction(Handle<Object> object,
+                                            Register actual_closure,
+                                            Handle<JSFunction> function) {
+  PatchGlobalProxy(object);
+  ParameterCount expected(function);
+  __ InvokeFunction(actual_closure, expected, arguments(),
+                    JUMP_FUNCTION, NullCallWrapper(), call_kind());
+}
+
+
+Handle<Code> CallStubCompiler::CompileCallConstant(
+    Handle<Object> object,
+    Handle<JSObject> holder,
+    Handle<Name> name,
+    CheckType check,
+    Handle<JSFunction> function) {
+  if (HasCustomCallGenerator(function)) {
+    Handle<Code> code = CompileCustomCall(object, holder,
+                                          Handle<Cell>::null(),
+                                          function, Handle<String>::cast(name),
+                                          Code::FAST);
+    // A null handle means bail out to the regular compiler code below.
+    if (!code.is_null()) return code;
+  }
+
+  Label miss;
+  HandlerFrontendHeader(object, holder, name, check, &miss);
+  GenerateJumpFunction(object, function);
+  HandlerFrontendFooter(&miss);
+
+  // Return the generated code.
+  return GetCode(function);
+}
+
+
 Register LoadStubCompiler::HandlerFrontendHeader(
     Handle<Type> type,
     Register object_reg,