[inspector] Expose scopes for suspended generator objects

src/inspector/debugger_script_externs.js

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** @typedef {{
         type: string,
         object: !Object,
         name: (string|undefined),
         startLocation: (!RawLocation|undefined),
         endLocation: (!RawLocation|undefined)
@@ skipping 373 matching lines @@
 
 /** @return {string} */
 GeneratorMirror.prototype.status = function() {}
 
 /** @return {!SourceLocation|undefined} */
 GeneratorMirror.prototype.sourceLocation = function() {}
 
 /** @return {!FunctionMirror} */
 GeneratorMirror.prototype.func = function() {}
 
+/** @return {number} */
+GeneratorMirror.prototype.scopeCount = function() {}
+
+/**
+ * @param {number} index
+ * @return {!ScopeMirror|undefined}
+ */
+GeneratorMirror.prototype.scope = function(index) {}
+
 
 /**
  * @interface
  * @extends {Mirror}
  */
 function PropertyMirror() {}
 
 /** @return {!Mirror} */
 PropertyMirror.prototype.value = function() {}
 
@@ skipping 68 matching lines @@
 ScopeMirror.prototype.setVariableValue = function(name, newValue) {}
 
 /**
  * @interface
  * @extends {Mirror}
  */
 function ContextMirror() {}
 
 /** @return {string|undefined} */
 ContextMirror.prototype.data = function() {}