https://bugs.webkit.org/show_bug.cgi?id=113489

Reviewed by Pavel Feldman.

ResourceScriptFile._hasDiverged is the one flag that shows whether we have diverged from VM.
It's values is based both on dirty flag on uiSourceCode and information about live edit failures stored in _lastLiveEditFailed field.
Removed willMerge/Diverge events from ScriptFile.
JavaScriptSourceFrame now uses isMergingToVM/DivergingFromVM methods on ScriptFile.
to determine whether breakpointAdded/Removed events should be ignored.
Introduced muted state on JavaScriptSourceFrame to determine whether it should ignore user attempts to set/remove breakpoints.

* inspector/front-end/JavaScriptSourceFrame.js:
(WebInspector.JavaScriptSourceFrame):
(WebInspector.JavaScriptSourceFrame.prototype._didMergeToVM):
(WebInspector.JavaScriptSourceFrame.prototype._didDivergeFromVM):
(WebInspector.JavaScriptSourceFrame.prototype._muteBreakpointsWhileEditing):
(WebInspector.JavaScriptSourceFrame.prototype._restoreBreakpointsAfterEditing):
(WebInspector.JavaScriptSourceFrame.prototype._addBreakpointDecoration):
(WebInspector.JavaScriptSourceFrame.prototype._removeBreakpointDecoration):
(WebInspector.JavaScriptSourceFrame.prototype._shouldIgnoreExternalBreakpointEvents):
(WebInspector.JavaScriptSourceFrame.prototype._breakpointAdded):
(WebInspector.JavaScriptSourceFrame.prototype._breakpointRemoved):
(WebInspector.JavaScriptSourceFrame.prototype._updateScriptFile):
(WebInspector.JavaScriptSourceFrame.prototype.onTextEditorContentLoaded):
* inspector/front-end/LiveEditSupport.js:
(WebInspector.LiveEditScriptFile.prototype.isMergingToVM):
* inspector/front-end/ResourceScriptMapping.js:
(WebInspector.ResourceScriptMapping.prototype.rawLocationToUILocation):
(WebInspector.ScriptFile.prototype.isMergingToVM):
(WebInspector.ResourceScriptFile):
(WebInspector.ResourceScriptFile.prototype._workingCopyCommitted):
(WebInspector.ResourceScriptFile.prototype._isDiverged):
(WebInspector.ResourceScriptFile.prototype._workingCopyChanged):
(WebInspector.ResourceScriptFile.prototype._update):
(WebInspector.ResourceScriptFile.prototype._divergeFromVM):
(WebInspector.ResourceScriptFile.prototype._mergeToVM):
(WebInspector.ResourceScriptFile.prototype.hasDivergedFromVM):
(WebInspector.ResourceScriptFile.prototype.isMergingToVM):
* inspector/front-end/ScriptSnippetModel.js:
(WebInspector.SnippetScriptFile.prototype.isMergingToVM):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147099 268f45cc-cd09-0410-ab3c-d52691b4dbfc