Utils: Clean path when transforming into QFileInfo

Fixes icons for relative paths inside locator.

Fixes: QTCREATORBUG-26411
Change-Id: Ia34d3b4af791ef79be4f349bd416df1190678557
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/libs/utils/filepath.cpp

@@ -440,7 +440,7 @@ FilePath FilePath::fromFileInfo(const QFileInfo &info)
 QFileInfo FilePath::toFileInfo() const
 {
     QTC_ASSERT(!needsDevice(), return QFileInfo());
-    return QFileInfo(m_data);
+    return QFileInfo(cleanPath().path());
 }
 
 FilePath FilePath::fromUrl(const QUrl &url)