Fix speculative inlining in precompilation.

runtime/vm/aot_optimizer.cc

Index: runtime/vm/aot_optimizer.cc
diff --git a/runtime/vm/aot_optimizer.cc b/runtime/vm/aot_optimizer.cc
index 8b66e4998ee786aebda3da2fce812d7ccea94451..f7c741dc11d73184e253f926d6c9d12792e71a75 100644
--- a/runtime/vm/aot_optimizer.cc
+++ b/runtime/vm/aot_optimizer.cc
@@ -2148,6 +2148,11 @@ static bool TryExpandTestCidsResult(ZoneGrowableArray<intptr_t>* results,
 // TODO(srdjan): Use ICData to check if always true or false.
 void AotOptimizer::ReplaceWithInstanceOf(InstanceCallInstr* call) {
   ASSERT(Token::IsTypeTestOperator(call->token_kind()));
+  // Guard against repeated speculative inlining.
+  if (!use_speculative_inlining_ ||
+      IsBlackListedForInlining(call->deopt_id())) {
+    return;
+  }
   Definition* left = call->ArgumentAt(0);
   Definition* type_args = NULL;
   AbstractType& type = AbstractType::ZoneHandle(Z);
@@ -2256,6 +2261,11 @@ void AotOptimizer::ReplaceWithInstanceOf(InstanceCallInstr* call) {
 // TODO(srdjan): Apply optimizations as in ReplaceWithInstanceOf (TestCids).
 void AotOptimizer::ReplaceWithTypeCast(InstanceCallInstr* call) {
   ASSERT(Token::IsTypeCastOperator(call->token_kind()));
+  // Guard against repeated speculative inlining.
+  if (!use_speculative_inlining_ ||
+      IsBlackListedForInlining(call->deopt_id())) {
+    return;
+  }
   Definition* left = call->ArgumentAt(0);
   Definition* type_args = call->ArgumentAt(1);
   const AbstractType& type =