[stubs] Introduce a proper ToBooleanStub.

src/code-stubs-hydrogen.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 "src/code-stubs.h"
 
 #include "src/bailout-reason.h"
 #include "src/crankshaft/hydrogen.h"
 #include "src/crankshaft/lithium.h"
 #include "src/field-index.h"
@@ skipping 1663 matching lines @@
   }
 
   return BuildStringAdd(left, right, HAllocationMode(pretenure_flag));
 }
 
 
 Handle<Code> StringAddStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
-
 template <>
-HValue* CodeStubGraphBuilder<ToBooleanStub>::BuildCodeInitializedStub() {
-  ToBooleanStub* stub = casted_stub();
+HValue* CodeStubGraphBuilder<ToBooleanICStub>::BuildCodeInitializedStub() {
+  ToBooleanICStub* stub = casted_stub();
   IfBuilder if_true(this);
   if_true.If<HBranch>(GetParameter(0), stub->types());
   if_true.Then();
   if_true.Return(graph()->GetConstantTrue());
   if_true.Else();
   if_true.End();
   return graph()->GetConstantFalse();
 }
 
-
-Handle<Code> ToBooleanStub::GenerateCode() {
-  return DoGenerateCode(this);
-}
-
+Handle<Code> ToBooleanICStub::GenerateCode() { return DoGenerateCode(this); }
 
 template <>
 HValue* CodeStubGraphBuilder<StoreGlobalStub>::BuildCodeInitializedStub() {
   StoreGlobalStub* stub = casted_stub();
   HParameter* value = GetParameter(StoreDescriptor::kValueIndex);
   if (stub->check_global()) {
     // Check that the map of the global has not changed: use a placeholder map
     // that will be replaced later with the global object's map.
     HParameter* proxy = GetParameter(StoreDescriptor::kReceiverIndex);
     HValue* proxy_map =
@@ skipping 687 matching lines @@
   return Pop();
 }
 
 
 Handle<Code> KeyedLoadGenericStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 }  // namespace internal
 }  // namespace v8