Added support for isolate unhandled exceptions.

runtime/vm/isolate.h

 // Copyright (c) 2012, 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/class_table.h"
@@ skipping 235 matching lines @@
     return create_callback_;
   }
 
   static void SetInterruptCallback(Dart_IsolateInterruptCallback cb) {
     interrupt_callback_ = cb;
   }
   static Dart_IsolateInterruptCallback InterruptCallback() {
     return interrupt_callback_;
   }
 
+  static void SetUnhandledExceptionCallback(
+      Dart_IsolateUnhandledExceptionCallback cb) {
+    unhandled_exception_callback_ = cb;
+  }
+  static Dart_IsolateUnhandledExceptionCallback UnhandledExceptionCallback() {
+    return unhandled_exception_callback_;
+  }
+
   static void SetShutdownCallback(Dart_IsolateShutdownCallback cb) {
     shutdown_callback_ = cb;
   }
   static Dart_IsolateShutdownCallback ShutdownCallback() {
     return shutdown_callback_;
   }
 
   intptr_t* deopt_cpu_registers_copy() const {
     return deopt_cpu_registers_copy_;
   }
@@ skipping 77 matching lines @@
   // Deoptimization support.
   intptr_t* deopt_cpu_registers_copy_;
   double* deopt_xmm_registers_copy_;
   intptr_t* deopt_frame_copy_;
   intptr_t deopt_frame_copy_size_;
   DeferredDouble* deferred_doubles_;
   DeferredMint* deferred_mints_;
 
   static Dart_IsolateCreateCallback create_callback_;
   static Dart_IsolateInterruptCallback interrupt_callback_;
+  static Dart_IsolateUnhandledExceptionCallback unhandled_exception_callback_;
   static Dart_IsolateShutdownCallback shutdown_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(Isolate);
 };
 
 // When we need to execute code in an isolate, we use the
 // StartIsolateScope.
 class StartIsolateScope {
  public:
   explicit StartIsolateScope(Isolate* new_isolate)
@@ skipping 52 matching lines @@
   Isolate* new_isolate_;
   Isolate* saved_isolate_;
   uword saved_stack_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(SwitchIsolateScope);
 };
 
 }  // namespace dart
 
 #endif  // VM_ISOLATE_H_