Fix register mixup in arm64's Crankshafted typeof() == 'object'

src/arm64/lithium-codegen-arm64.cc

Index: src/arm64/lithium-codegen-arm64.cc
diff --git a/src/arm64/lithium-codegen-arm64.cc b/src/arm64/lithium-codegen-arm64.cc
index c86efbd3a424b2f01f82e104ba9059a5289d842f..29c13ac5833e2bf59dbb713c5f7f8529176b867d 100644
--- a/src/arm64/lithium-codegen-arm64.cc
+++ b/src/arm64/lithium-codegen-arm64.cc
@@ -5896,7 +5896,7 @@ void LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) {
     __ CompareInstanceType(map, scratch, LAST_NONCALLABLE_SPEC_OBJECT_TYPE);
     __ B(gt, false_label);
     // Check for undetectable objects => false.
-    __ Ldrb(scratch, FieldMemOperand(value, Map::kBitFieldOffset));
+    __ Ldrb(scratch, FieldMemOperand(map, Map::kBitFieldOffset));
     EmitTestAndBranch(instr, eq, scratch, 1 << Map::kIsUndetectable);
 
   } else {