Add functionality to get full stack trace when exceptions are thrown.

runtime/vm/object.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_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 6275 matching lines @@
 // Internal stacktrace object used in exceptions for printing stack traces.
 class Stacktrace : public Instance {
  public:
   intptr_t Length() const;
   RawFunction* FunctionAtFrame(intptr_t frame_index) const;
   RawCode* CodeAtFrame(intptr_t frame_index) const;
   RawSmi* PcOffsetAtFrame(intptr_t frame_index) const;
   void Append(const GrowableObjectArray& func_list,
               const GrowableObjectArray& code_list,
               const GrowableObjectArray& pc_offset_list) const;
+  void SetCatchStacktrace(const Array& func_array,
+                          const Array& code_array,
+                          const Array& pc_offset_array) const;
 
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawStacktrace));
   }
-  static RawStacktrace* New(const GrowableObjectArray& func_list,
-                            const GrowableObjectArray& code_list,
-                            const GrowableObjectArray& pc_offset_list,
+  static RawStacktrace* New(const Array& func_array,
+                            const Array& code_array,
+                            const Array& pc_offset_array,
                             Heap::Space space = Heap::kNew);
 
-  const char* ToCStringInternal(bool verbose) const;
+  RawString* FullStacktrace() const;
 
  private:
   void set_function_array(const Array& function_array) const;
   void set_code_array(const Array& code_array) const;
   void set_pc_offset_array(const Array& pc_offset_array) const;
 
   FINAL_HEAP_OBJECT_IMPLEMENTATION(Stacktrace, Instance);
   friend class Class;
 };
 
@@ skipping 230 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_