Fix http://dartbug.com/23578:

runtime/vm/intrinsifier_mips.cc

Index: runtime/vm/intrinsifier_mips.cc
diff --git a/runtime/vm/intrinsifier_mips.cc b/runtime/vm/intrinsifier_mips.cc
index 2163bbe1950f7279fdd0a0a2bf6c55697d6c2b31..ecf07e6b536ec97f1de3fdaab08c6f67f5b25985 100644
--- a/runtime/vm/intrinsifier_mips.cc
+++ b/runtime/vm/intrinsifier_mips.cc
@@ -48,7 +48,7 @@ static intptr_t ComputeObjectArrayTypeArgumentsOffset() {
 void Intrinsifier::ObjectArraySetIndexed(Assembler* assembler) {
   Label fall_through;
 
-  if (Isolate::Current()->TypeChecksEnabled()) {
+  if (Isolate::Current()->flags().type_checks()) {
     const intptr_t type_args_field_offset =
         ComputeObjectArrayTypeArgumentsOffset();
     // Inline simple tests (Smi, null), fallthrough if not positive.
@@ -145,7 +145,7 @@ void Intrinsifier::GrowableArray_Allocate(Assembler* assembler) {
 // On stack: growable array (+1), value (+0).
 void Intrinsifier::GrowableArray_add(Assembler* assembler) {
   // In checked mode we need to type-check the incoming argument.
-  if (Isolate::Current()->TypeChecksEnabled()) return;
+  if (Isolate::Current()->flags().type_checks()) return;
   Label fall_through;
   __ lw(T0, Address(SP, 1 * kWordSize));  // Array.
   __ lw(T1, FieldAddress(T0, GrowableObjectArray::length_offset()));