[ic] Let LoadGlobalIC load the variable name from TypeFeedbackMetadata.

src/interface-descriptors.h

Index: src/interface-descriptors.h
diff --git a/src/interface-descriptors.h b/src/interface-descriptors.h
index 23d35d840fd3dadcce07d506f61120149d33f882..9ee08792831e254760c39de4c73889f31f3d8abc 100644
--- a/src/interface-descriptors.h
+++ b/src/interface-descriptors.h
@@ -374,7 +374,7 @@ class LoadGlobalDescriptor : public CallInterfaceDescriptor {
   DECLARE_DESCRIPTOR_WITH_CUSTOM_FUNCTION_TYPE(LoadGlobalDescriptor,
                                                CallInterfaceDescriptor)
 
-  enum ParameterIndices { kNameIndex, kSlotIndex };
+  enum ParameterIndices { kSlotIndex };
 };
 
 class LoadGlobalWithVectorDescriptor : public CallInterfaceDescriptor {
@@ -382,7 +382,7 @@ class LoadGlobalWithVectorDescriptor : public CallInterfaceDescriptor {
   DECLARE_DESCRIPTOR_WITH_CUSTOM_FUNCTION_TYPE(LoadGlobalWithVectorDescriptor,
                                                CallInterfaceDescriptor)
 
-  enum ParameterIndices { kNameIndex, kSlotIndex, kVectorIndex };
+  enum ParameterIndices { kSlotIndex, kVectorIndex };
 };
 
 class StoreDescriptor : public CallInterfaceDescriptor {