Turn Load/StoreGlobal into a handler.

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index 80fbc78e5b588a9b4cc45b5dff4eb440a61c8876..5549b50e284e789f597ce7251db0ca0c6db713ba 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -3151,9 +3151,7 @@ Handle<Code> LoadStubCompiler::CompileLoadGlobal(
     bool is_dont_delete) {
   Label success, miss;
 
-  __ CheckMap(receiver(), Handle<Map>(object->map()), &miss, DO_SMI_CHECK);
-  HandlerFrontendHeader(
-      object, receiver(), Handle<JSObject>::cast(global), name, &miss);
+  HandlerFrontendHeader(object, receiver(), global, name, &miss);
   // Get the value from the cell.
   if (Serializer::enabled()) {
     __ mov(eax, Immediate(cell));
@@ -3180,7 +3178,7 @@ Handle<Code> LoadStubCompiler::CompileLoadGlobal(
   __ ret(0);
 
   // Return the generated code.
-  return GetICCode(kind(), Code::NORMAL, name);
+  return GetCode(kind(), Code::NORMAL, name);
 }