Unbreak --deopt-every-n-times.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 769764e785aadcb0d7978a9c0606d96fae610df6..164075b43068c2b03b4a2df906ca0bfc148325af 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -851,7 +851,9 @@ void LCodeGen::DeoptimizeIf(Condition cc, LEnvironment* environment) {
   }
 
   ASSERT(FLAG_deopt_every_n_times < 2);  // Other values not supported on ARM.
-  if (FLAG_deopt_every_n_times == 1 && info_->opt_count() == id) {
+  if (FLAG_deopt_every_n_times == 1 &&
+      !info()->IsStub() &&
+      info()->opt_count() == id) {
     __ Jump(entry, RelocInfo::RUNTIME_ENTRY);
     return;
   }