Add an API for setting the sticky error

runtime/vm/isolate.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_ISOLATE_H_
 #define VM_ISOLATE_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/atomic.h"
@@ skipping 517 matching lines @@
   void set_metrics_list_head(Metric* metric) {
     metrics_list_head_ = metric;
   }
 
   RawGrowableObjectArray* deoptimized_code_array() const {
     return deoptimized_code_array_;
   }
   void set_deoptimized_code_array(const GrowableObjectArray& value);
   void TrackDeoptimizedCode(const Code& code);
 
+  // Also sends a paused at exit event over the service protocol.
+  void SetStickyError(RawError* sticky_error);
+
   RawError* sticky_error() const { return sticky_error_; }
   void clear_sticky_error();
 
   bool compilation_allowed() const { return compilation_allowed_; }
   void set_compilation_allowed(bool allowed) {
     compilation_allowed_ = allowed;
   }
 
   // In precompilation we finalize all regular classes before compiling.
   bool all_classes_finalized() const { return all_classes_finalized_; }
@@ skipping 440 matching lines @@
   intptr_t* spawn_count_;
 
   Dart_IsolateFlags isolate_flags_;
   bool paused_;
   bool errors_are_fatal_;
 };
 
 }  // namespace dart
 
 #endif  // VM_ISOLATE_H_