Evironment::searchInPath, no need to convert slashes

We assume that the input is normalized.

src/libs/utils/environment.cpp

@@ -226,7 +226,7 @@ QString Environment::searchInPath(const QStringList &executables,
 
         QFileInfo baseFi(exec);
         if (baseFi.isAbsolute() && baseFi.exists())
-            return QDir::fromNativeSeparators(exec);
+            return exec;
 
         // Check in directories:
         foreach (const QString &dir, additionalDirs) {