ClangTools: Apply indention/formatting after fix-its

Fix-its do not follow the current formatting style therefore
apply indention/formatting by using indenter.

This change will work best when ClangFormat plugin is
enabled to not only reindent line but also format it.

Task-number: QTCREATORBUG-21448
Change-Id: I8bcafcf49f3118aff7840326547e7a24052469b2
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

src/plugins/clangformat/clangformatindenter.cpp

@@ -384,14 +384,10 @@ void ClangFormatIndenter::indent(QTextDocument *doc,
 }
 
 QtReplacements ClangFormatIndenter::format(QTextDocument *doc,
+                                           const Utils::FileName &fileName,
                                            const QTextCursor &cursor,
                                            const TextEditor::TabSettings & /*tabSettings*/)
 {
-    TextEditorWidget *editor = TextEditorWidget::currentTextEditorWidget();
-    if (!editor)
-        return QtReplacements();
-
-    const Utils::FileName fileName = editor->textDocument()->filePath();
     int utf8Offset;
     int utf8Length;
     const QByteArray buffer = doc->toPlainText().toUtf8();