[debugger] Remove obsolete stepping modes.

src/debug/debug.js

 // Copyright 2012 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.
 
 (function (global, utils) {
 "use strict";
 
 // ----------------------------------------------------------------------------
 // Imports
 
@@ skipping 44 matching lines @@
                      AsyncTaskEvent: 8 };
 
 // Types of exceptions that can be broken upon.
 Debug.ExceptionBreak = { Caught : 0,
                          Uncaught: 1 };
 
 // The different types of steps.
 Debug.StepAction = { StepOut: 0,
                      StepNext: 1,
                      StepIn: 2,
-                     StepMin: 3,
-                     StepInMin: 4,
-                     StepFrame: 5 };
+                     StepFrame: 3 };
 
 // The different types of scripts matching enum ScriptType in objects.h.
 Debug.ScriptType = { Native: 0,
                      Extension: 1,
                      Normal: 2 };
 
 // The different types of script compilations matching enum
 // Script::CompilationType in objects.h.
 Debug.ScriptCompilationType = { Host: 0,
                                 Eval: 1,
@@ skipping 1394 matching lines @@
       if (count < 0) {
         throw MakeError(kDebugger,
                         'Invalid stepcount argument "' + stepcount + '".');
       }
     }
 
     // Get the stepaction argument.
     if (stepaction) {
       if (stepaction == 'in') {
         action = Debug.StepAction.StepIn;
-      } else if (stepaction == 'min') {
-        action = Debug.StepAction.StepMin;
       } else if (stepaction == 'next') {
         action = Debug.StepAction.StepNext;
       } else if (stepaction == 'out') {
         action = Debug.StepAction.StepOut;
       } else {
         throw MakeError(kDebugger,
                         'Invalid stepaction argument "' + stepaction + '".');
       }
     }
 
@@ skipping 1124 matching lines @@
   "IsBreakPointTriggered", IsBreakPointTriggered,
   "UpdateScriptBreakPoints", UpdateScriptBreakPoints,
 ]);
 
 // Export to liveedit.js
 utils.Export(function(to) {
   to.GetScriptBreakPoints = GetScriptBreakPoints;
 });
 
 })