MIPS: ES6 symbols: turn symbols into a proper primitive type

src/mips/builtins-mips.cc

Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index 54efd9491357c6d8a661247cf29d150bcd541ab9..452521c942eb79009a2740a6acbaa84a39e395c8 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -1130,10 +1130,6 @@ static void Generate_JSConstructStubHelper(MacroAssembler* masm,
     __ GetObjectType(v0, a1, a3);
     __ Branch(&exit, greater_equal, a3, Operand(FIRST_SPEC_OBJECT_TYPE));
 
-    // Symbols are "objects".
-    __ lbu(a3, FieldMemOperand(a1, Map::kInstanceTypeOffset));
-    __ Branch(&exit, eq, a3, Operand(SYMBOL_TYPE));
-
     // Throw away the result of the constructor invocation and use the
     // on-stack receiver as the result.
     __ bind(&use_receiver);