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

src/deoptimizer.cc

 // Copyright 2013 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 2411 matching lines @@
       uint32_t pc_offset = Memory::uint32_at(back_edge_cursor + kIntSize);
       Address pc_after = unoptimized_code->instruction_start() + pc_offset;
       RevertInterruptCodeAt(unoptimized_code,
                             pc_after,
                             interrupt_code,
                             replacement_code);
     }
     back_edge_cursor += FullCodeGenerator::kBackEdgeEntrySize;
   }
   unoptimized_code->set_back_edges_patched_for_osr(false);
+  unoptimized_code->set_allow_osr_at_loop_nesting_level(0);
 #ifdef DEBUG
   // Assert that none of the back edges are patched anymore.
   Deoptimizer::VerifyInterruptCode(
       unoptimized_code, interrupt_code, replacement_code, -1);
 #endif  // DEBUG
 }
 
 
 #ifdef DEBUG
 void Deoptimizer::VerifyInterruptCode(Code* unoptimized_code,
@@ skipping 667 matching lines @@
 
 void DeoptimizedFrameInfo::Iterate(ObjectVisitor* v) {
   v->VisitPointer(BitCast<Object**>(&function_));
   v->VisitPointers(parameters_, parameters_ + parameters_count_);
   v->VisitPointers(expression_stack_, expression_stack_ + expression_count_);
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal