Merged: [ic] Support data handlers in LoadGlobalIC.

src/code-stub-assembler.cc

Index: src/code-stub-assembler.cc
diff --git a/src/code-stub-assembler.cc b/src/code-stub-assembler.cc
index fb5ce14b1ce7d5a0dfe1de153fe64f8af5e72e01..b1ed2f13c7f6406358b9da8d6decd16b3fc49b95 100644
--- a/src/code-stub-assembler.cc
+++ b/src/code-stub-assembler.cc
@@ -5733,6 +5733,8 @@ void CodeStubAssembler::HandleLoadICProtoHandler(
       IsSetWord<LoadHandler::DoNegativeLookupOnReceiverBits>(handler_flags),
       &check_prototypes);
   {
+    CSA_ASSERT(this, Word32BinaryNot(
+                         HasInstanceType(p->receiver, JS_GLOBAL_OBJECT_TYPE)));
     // We have a dictionary receiver, do a negative lookup check.
     NameDictionaryNegativeLookup(p->receiver, p->name, miss);
     Goto(&check_prototypes);