Clang: Use Utils::TemporaryDirectory

Task-number: QTCREATORBUG-17401
Change-Id: Ibf6007455ec92b1d9fcac17e1f3b5e2af21b7438
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

tests/unit/unittest/unittests-main.cpp

@@ -25,6 +25,8 @@
 
 #include <sqliteglobal.h>
 
+#include <utils/temporarydirectory.h>
+
 #include <QCoreApplication>
 #include <QLoggingCategory>
 
@@ -37,6 +39,8 @@
 
 int main(int argc, char *argv[])
 {
+    Utils::TemporaryDirectory::setMasterTemporaryDirectory(QDir::tempPath()
+                                                           +"/QtCreator-UnitTests-XXXXXX");
     Sqlite::registerTypes();
 
     QCoreApplication application(argc, argv);