Fixing issue 1639, debugger stops stepping outside evaluate.

src/runtime.cc

 // Copyright 2011 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 11950 matching lines @@
       Handle<JSFunction>(
           isolate->factory()->NewFunctionFromSharedFunctionInfo(shared,
                                                                 context));
 
   // Invoke the result of the compilation to get the evaluation function.
   bool has_pending_exception;
   Handle<Object> receiver = isolate->global();
   Handle<Object> result =
     Execution::Call(compiled_function, receiver, 0, NULL,
                     &has_pending_exception);
+  // Clear the oneshot breakpoints so that the debugger does not step further.
+  isolate->debug()->ClearStepping();
   if (has_pending_exception) return Failure::Exception();
   return *result;
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugGetLoadedScripts) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 0);
 
   // Fill the script objects.
@@ skipping 1249 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal