Turn Load/StoreGlobal into a handler.

src/arm/stub-cache-arm.cc

Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
index a476a428c163149569a46d1b398c74b88dc62b41..076a2f172010ca1d4da34153e57e0ffc527ea27f 100644
--- a/src/arm/stub-cache-arm.cc
+++ b/src/arm/stub-cache-arm.cc
@@ -3046,10 +3046,7 @@ Handle<Code> LoadStubCompiler::CompileLoadGlobal(
     bool is_dont_delete) {
   Label success, miss;
 
-  __ CheckMap(
-      receiver(), scratch1(), 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.
   __ mov(r3, Operand(cell));
@@ -3071,7 +3068,7 @@ Handle<Code> LoadStubCompiler::CompileLoadGlobal(
   __ Ret();
 
   // Return the generated code.
-  return GetICCode(kind(), Code::NORMAL, name);
+  return GetCode(kind(), Code::NORMAL, name);
 }