CodeStubs contain their corresponding Isolate* now. (part 2)

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index b0c0946cd4ac9ed5187ab32c56df9c4835239f5e..6d932d4ad83a2c6d4b3580728ac9e2c1f07012ae 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -3097,8 +3097,7 @@ HGraph::HGraph(CompilationInfo* info)
       inlined_functions_(5, info->zone()) {
   if (info->IsStub()) {
     HydrogenCodeStub* stub = info->code_stub();
-    CodeStubInterfaceDescriptor* descriptor =
-        stub->GetInterfaceDescriptor(isolate_);
+    CodeStubInterfaceDescriptor* descriptor = stub->GetInterfaceDescriptor();
     start_environment_ =
         new(zone_) HEnvironment(zone_, descriptor->environment_length());
   } else {
@@ -8009,7 +8008,7 @@ bool HOptimizedGraphBuilder::TryInlineApiCall(Handle<JSFunction> function,
       isolate()->call_descriptor(Isolate::ApiFunctionCall);
 
   CallApiFunctionStub stub(isolate(), is_store, call_data_is_undefined, argc);
-  Handle<Code> code = stub.GetCode(isolate());
+  Handle<Code> code = stub.GetCode();
   HConstant* code_value = Add<HConstant>(code);
 
   ASSERT((sizeof(op_vals) / kPointerSize) ==