Ensure that we do not accidentally emit debug code.

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index ed8a2e2f3a768992506d2aa055c49940abedbfa3..4f097471227a198af8599b4e6b7478cbaad67a91 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -2690,7 +2690,7 @@ void FullCodeGenerator::EmitIsStringWrapperSafeForDefaultValueOf(
   context()->PrepareTest(&materialize_true, &materialize_false,
                          &if_true, &if_false, &fall_through);
 
-  if (generate_debug_code_) __ AbortIfSmi(v0);
+  __ AssertNotSmi(v0);
 
   __ lw(a1, FieldMemOperand(v0, HeapObject::kMapOffset));
   __ lbu(t0, FieldMemOperand(a1, Map::kBitField2Offset));
@@ -3571,7 +3571,7 @@ void FullCodeGenerator::EmitGetCachedArrayIndex(CallRuntime* expr) {
   ASSERT(args->length() == 1);
   VisitForAccumulatorValue(args->at(0));
 
-  __ AbortIfNotString(v0);
+  __ AssertString(v0);
 
   __ lw(v0, FieldMemOperand(v0, String::kHashFieldOffset));
   __ IndexFromHash(v0, v0);