[es6] When comparing two symbols we may need to throw a TypeError

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 d0ff12a8d8bb347f390f687637270122961243cb..08804b7c098df8929ef83761cb39f9fe6a94a2a9 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -253,6 +253,8 @@ 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);
+    __ b(eq, slow);
   } else {
     __ CompareObjectType(r0, r4, r4, HEAP_NUMBER_TYPE);
     __ b(eq, &heap_number);