[stubs] Introduce a proper ToBooleanStub.

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index 07177a277a091b40671e1d9acfab32a55d32cc7f..b3446b6cb74af9f105a1223a561ea93ff6dfa02a 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -1681,10 +1681,9 @@ 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();
@@ -1694,11 +1693,7 @@ HValue* CodeStubGraphBuilder<ToBooleanStub>::BuildCodeInitializedStub() {
   return graph()->GetConstantFalse();
 }
 
-
-Handle<Code> ToBooleanStub::GenerateCode() {
-  return DoGenerateCode(this);
-}
-
+Handle<Code> ToBooleanICStub::GenerateCode() { return DoGenerateCode(this); }
 
 template <>
 HValue* CodeStubGraphBuilder<StoreGlobalStub>::BuildCodeInitializedStub() {