- GrowableArray::RemoveLast returns the value being removed

vm/growable_array.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.
 // Defines growable array classes, that differ where they are allocated:
 // - GrowableArray: allocate on stack.
 // - ZoneGrowableArray: allocated in the zone.
 
 #ifndef VM_GROWABLE_ARRAY_H_
 #define VM_GROWABLE_ARRAY_H_
 
@@ skipping 28 matching lines @@
   void TruncateTo(intptr_t length) {
     ASSERT(length_ >= length);
     length_ = length;
   }
 
   void Add(const T& value) {
     Resize(length() + 1);
     Last() = value;
   }
 
-  void RemoveLast() {
+  T& RemoveLast() {
     ASSERT(length_ > 0);
+    T& result = operator[](length_ - 1);
     length_--;
+    return result;
   }
 
   T& operator[](int index) const {
     ASSERT(0 <= index);
     ASSERT(index < length_);
     ASSERT(length_ <= capacity_);
     return data_[index];
   }
 
   T& Last() const {
@@ skipping 76 matching lines @@
           initial_capacity,
           Isolate::Current()->current_zone()) {}
   ZoneGrowableArray() :
       BaseGrowableArray<T, ZoneAllocated>(
           Isolate::Current()->current_zone()) {}
 };
 
 }  // namespace dart
 
 #endif  // VM_GROWABLE_ARRAY_H_