Reland r20974: Unify and simplify the FastCloneShallowArrayStub

src/code-stubs.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "v8.h"
 
 #include "bootstrapper.h"
 #include "code-stubs.h"
 #include "cpu-profiler.h"
 #include "stub-cache.h"
 #include "factory.h"
 #include "gdb-jit.h"
 #include "macro-assembler.h"
 
 namespace v8 {
 namespace internal {
 
 
 CodeStubInterfaceDescriptor::CodeStubInterfaceDescriptor()
     : register_param_count_(-1),
       stack_parameter_count_(no_reg),
       hint_stack_parameter_count_(-1),
       function_mode_(NOT_JS_FUNCTION_STUB_MODE),
       register_params_(NULL),
+      register_param_representations_(NULL),
       deoptimization_handler_(NULL),
       handler_arguments_mode_(DONT_PASS_ARGUMENTS),
       miss_handler_(),
       has_miss_handler_(false) { }
 
 
 bool CodeStub::FindCodeInCache(Code** code_out) {
   UnseededNumberDictionary* stubs = isolate()->heap()->code_stubs();
   int index = stubs->FindEntry(GetKey());
   if (index != UnseededNumberDictionary::kNotFound) {
@@ skipping 691 matching lines @@
 
 
 void FastNewContextStub::InstallDescriptors(Isolate* isolate) {
   FastNewContextStub stub(isolate, FastNewContextStub::kMaximumSlots);
   InstallDescriptor(isolate, &stub);
 }
 
 
 // static
 void FastCloneShallowArrayStub::InstallDescriptors(Isolate* isolate) {
-  FastCloneShallowArrayStub stub(isolate,
-                                 FastCloneShallowArrayStub::CLONE_ELEMENTS,
-                                 DONT_TRACK_ALLOCATION_SITE, 0);
+  FastCloneShallowArrayStub stub(isolate, DONT_TRACK_ALLOCATION_SITE);
   InstallDescriptor(isolate, &stub);
 }
 
 
 // static
 void BinaryOpICStub::InstallDescriptors(Isolate* isolate) {
   BinaryOpICStub stub(isolate, Token::ADD, NO_OVERWRITE);
   InstallDescriptor(isolate, &stub);
 }
 
@@ skipping 50 matching lines @@
   InstallDescriptor(isolate, &stub3);
 }
 
 InternalArrayConstructorStub::InternalArrayConstructorStub(
     Isolate* isolate) : PlatformCodeStub(isolate) {
   InternalArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate);
 }
 
 
 } }  // namespace v8::internal