[es6] Fix symbol comparison on some architectures

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 6ec81452769e06fa44aca00672a171555af53454..14143d1cc5c6464e1f95094c9e9aa5e97b39d9bf 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -253,7 +253,7 @@ static void EmitIdenticalObjectComparison(MacroAssembler* masm,
   if (cond == lt || cond == gt) {
     __ CompareObjectType(r0, r4, r4, FIRST_SPEC_OBJECT_TYPE);
     __ b(ge, slow);
-    __ CompareObjectType(r0, r4, r4, SYMBOL_TYPE);
+    __ cmp(r4, Operand(SYMBOL_TYPE));
     __ b(eq, slow);
   } else {
     __ CompareObjectType(r0, r4, r4, HEAP_NUMBER_TYPE);
@@ -262,6 +262,8 @@ static void EmitIdenticalObjectComparison(MacroAssembler* masm,
     if (cond != eq) {
       __ cmp(r4, Operand(FIRST_SPEC_OBJECT_TYPE));
       __ b(ge, slow);
+      __ cmp(r4, Operand(SYMBOL_TYPE));
+      __ b(eq, slow);
       // Normally here we fall through to return_equal, but undefined is
       // special: (undefined == undefined) == true, but
       // (undefined <= undefined) == false!  See ECMAScript 11.8.5.