[debug] remove StepFrame

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 68 matching lines @@
 Debug.debuggerFlags = function() {}
 
 
 /** @enum */
 const BreakPositionAlignment = {
     Statement: 0,
     BreakPosition: 1
 };
 Debug.BreakPositionAlignment = BreakPositionAlignment;
 
-/** @enum */
-Debug.StepAction = { StepOut: 0,
-                     StepNext: 1,
-                     StepIn: 2,
-                     StepFrame: 3 };
-
-/** @enum */
-const ScriptCompilationType = { Host: 0,
-                              Eval: 1,
-                              JSON: 2 };
-Debug.ScriptCompilationType = ScriptCompilationType;
-
 
 /** @interface */
 function DebuggerFlag() {}
 
 /** @param {boolean} value */
 DebuggerFlag.prototype.setValue = function(value) {}
 
 
 /** @typedef {{
  *    breakPointsActive: !DebuggerFlag
@@ skipping 363 matching lines @@
 ScopeMirror.prototype.setVariableValue = function(name, newValue) {}
 
 /**
  * @interface
  * @extends {Mirror}
  */
 function ContextMirror() {}
 
 /** @return {string|undefined} */
 ContextMirror.prototype.data = function() {}