DiffEditor: Replace bool arguments with flags enum

Change-Id: I70262476d015ba5b73069b149093dac66f7c6008
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/plugins/diffeditor/diffeditorcontroller.h

@@ -53,7 +53,13 @@ public:
 
     QString revisionFromDescription() const;
 
-    QString makePatch(bool revert, bool addPrefix = false) const;
+    enum PatchOption {
+        NoOption = 0,
+        Revert = 1,
+        AddPrefix = 2
+    };
+    Q_DECLARE_FLAGS(PatchOptions, PatchOption)
+    QString makePatch(PatchOptions options) const;
 
     static Core::IDocument *findOrCreateDocument(const QString &vcsId,
                                                  const QString &displayName);