Always reset allowed OSR nesting level when reverting interrupt code patches.

src/ia32/lithium-codegen-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 883 matching lines @@
     __ jmp(entry, RelocInfo::RUNTIME_ENTRY);
 
     __ bind(&no_deopt);
     __ mov(FieldOperand(ebx, SharedFunctionInfo::kStressDeoptCounterOffset),
            eax);
     __ pop(ebx);
     __ pop(eax);
     __ popfd();
   }
 
-  if (FLAG_trap_on_deopt) {
+  if (FLAG_trap_on_deopt && info()->IsOptimizing()) {
     Label done;
     if (cc != no_condition) {
       __ j(NegateCondition(cc), &done, Label::kNear);
     }
     __ int3();
     __ bind(&done);
   }
 
   ASSERT(info()->IsStub() || frame_is_built_);
   if (cc == no_condition && frame_is_built_) {
@@ skipping 5589 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32