Various clean-ups after top-level lexical declarations are done.

src/arm64/macro-assembler-arm64.cc

Index: src/arm64/macro-assembler-arm64.cc
diff --git a/src/arm64/macro-assembler-arm64.cc b/src/arm64/macro-assembler-arm64.cc
index f2ca92bd785596cfc300d2e0039a63b6b210e66c..c7a61ea67a41830e9b2249b991c005ed421b3650 100644
--- a/src/arm64/macro-assembler-arm64.cc
+++ b/src/arm64/macro-assembler-arm64.cc
@@ -4087,7 +4087,7 @@ void MacroAssembler::CheckAccessGlobalProxy(Register holder_reg,
 
   // Check the context is a native context.
   if (emit_debug_code()) {
-    // Read the first word and compare to the global_context_map.
+    // Read the first word and compare to the native_context_map.
     Ldr(scratch2, FieldMemOperand(scratch1, HeapObject::kMapOffset));
     CompareRoot(scratch2, Heap::kNativeContextMapRootIndex);
     Check(eq, kExpectedNativeContext);