Expose FrameDetails and ScopeDetails from its Mirrors.

src/mirror-debugger.js

Index: src/mirror-debugger.js
diff --git a/src/mirror-debugger.js b/src/mirror-debugger.js
index 27c2c9c9abf6a56cd9c7c2e9b22e0fc93510ab37..f288123bcafad8ea3ea01b9f626ebe8a7c612d32 100644
--- a/src/mirror-debugger.js
+++ b/src/mirror-debugger.js
@@ -1543,6 +1543,11 @@ function FrameMirror(break_id, index) {
 inherits(FrameMirror, Mirror);
 
 
+FrameMirror.prototype.details = function() {
+  return this.details_;
+};
+
+
 FrameMirror.prototype.index = function() {
   return this.index_;
 };
@@ -1964,6 +1969,11 @@ function ScopeMirror(frame, function, index, opt_details) {
 inherits(ScopeMirror, Mirror);
 
 
+ScopeMirror.prototype.details = function() {
+  return this.details_;
+};
+
+
 ScopeMirror.prototype.frameIndex = function() {
   return this.frame_index_;
 };