MIPS: port Add complete ElementsKind information directly to Map for objects with elements.

src/mips/ic-mips.cc

Index: src/mips/ic-mips.cc
diff --git a/src/mips/ic-mips.cc b/src/mips/ic-mips.cc
index 85b1ca22d2db5951ae94a7c62f49f5c78ab9b991..3c5e8db9cba72cc9954e8238c4af90c963950aef 100644
--- a/src/mips/ic-mips.cc
+++ b/src/mips/ic-mips.cc
@@ -950,11 +950,8 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
   GenerateKeyedLoadReceiverCheck(
       masm, receiver, a2, a3, Map::kHasIndexedInterceptor, &slow);
 
-  // Check the "has fast elements" bit in the receiver's map which is
-  // now in a2.
-  __ lbu(a3, FieldMemOperand(a2, Map::kBitField2Offset));
-  __ And(at, a3, Operand(1 << Map::kHasFastElements));
-  __ Branch(&check_number_dictionary, eq, at, Operand(zero_reg));
+  // Check the receiver's map to see if it has fast elements.
+  __ CheckFastElements(a2, a3, &check_number_dictionary);
 
   GenerateFastArrayLoad(
       masm, receiver, key, t0, a3, a2, v0, NULL, &slow);