Revert of [runtime] Replace global object link with native context link in all contexts.

src/arm64/macro-assembler-arm64.h

Index: src/arm64/macro-assembler-arm64.h
diff --git a/src/arm64/macro-assembler-arm64.h b/src/arm64/macro-assembler-arm64.h
index f1ffcb8750803f21e3400c6d323688942570b8d6..6d99d19e547e26ead22fdcf4ebb4e0d1c242b5e4 100644
--- a/src/arm64/macro-assembler-arm64.h
+++ b/src/arm64/macro-assembler-arm64.h
@@ -1132,6 +1132,14 @@
   void InvokeBuiltin(int native_context_index, InvokeFlag flag,
                      const CallWrapper& call_wrapper = NullCallWrapper());
 
+  // Store the code object for the given builtin in the target register and
+  // setup the function in the function register.
+  void GetBuiltinEntry(Register target, Register function,
+                       int native_context_index);
+
+  // Store the function for the given builtin in the target register.
+  void GetBuiltinFunction(Register target, int native_context_index);
+
   void Jump(Register target);
   void Jump(Address target, RelocInfo::Mode rmode, Condition cond = al);
   void Jump(Handle<Code> code, RelocInfo::Mode rmode, Condition cond = al);
@@ -1668,15 +1676,8 @@
 
   void LoadContext(Register dst, int context_chain_length);
 
-  // Load the global object from the current context.
-  void LoadGlobalObject(Register dst) {
-    LoadNativeContextSlot(Context::EXTENSION_INDEX, dst);
-  }
-
   // Load the global proxy from the current context.
-  void LoadGlobalProxy(Register dst) {
-    LoadNativeContextSlot(Context::GLOBAL_PROXY_INDEX, dst);
-  }
+  void LoadGlobalProxy(Register dst);
 
   // Emit code for a truncating division by a constant. The dividend register is
   // unchanged. Dividend and result must be different.
@@ -1898,7 +1899,7 @@
       Register scratch2,
       Label* no_map_match);
 
-  void LoadNativeContextSlot(int index, Register dst);
+  void LoadGlobalFunction(int index, Register function);
 
   // Load the initial map from the global function. The registers function and
   // map can be the same, function is then overwritten.
@@ -2203,8 +2204,8 @@
   return MemOperand(context, Context::SlotOffset(index));
 }
 
-inline MemOperand NativeContextMemOperand() {
-  return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX);
+inline MemOperand GlobalObjectMemOperand() {
+  return ContextMemOperand(cp, Context::GLOBAL_OBJECT_INDEX);
 }