MIPS: Reland "Initial switch to Chromium-style CHECK_* and DCHECK_* macros.".

src/mips/macro-assembler-mips.h

Index: src/mips/macro-assembler-mips.h
diff --git a/src/mips/macro-assembler-mips.h b/src/mips/macro-assembler-mips.h
index 643b9b5e77bbd3eb9080eb022219f9ea50747bfc..02845e2bbd9be0ecf82ab4265c9581aa8302a446 100644
--- a/src/mips/macro-assembler-mips.h
+++ b/src/mips/macro-assembler-mips.h
@@ -1102,7 +1102,7 @@ class MacroAssembler: public Assembler {
     lw(type, FieldMemOperand(obj, HeapObject::kMapOffset));
     lbu(type, FieldMemOperand(type, Map::kInstanceTypeOffset));
     And(type, type, Operand(kIsNotStringMask));
-    DCHECK_EQ(0, kStringTag);
+    DCHECK_EQ(0u, kStringTag);
     return eq;
   }