AutoTest: Avoid guessing run configuration

Base the selection of the run configuration on the executable
we have gotten already from the BuildTargetInfo and take
deployment information into account.

This also reverts cce1e130 partially and avoids
stuffing unrelated information into the buildsystemtarget.

Change-Id: I3de6e910a5fd1092d428ec4afc33c4ca62daaa25
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/plugins/cmakeprojectmanager/servermodereader.cpp

@@ -333,7 +333,7 @@ void ServerModeReader::updateCodeModel(CppTools::RawProjectParts &rpps)
 
         CppTools::RawProjectPart rpp;
         rpp.setProjectFileLocation(fg->target->sourceDirectory.toString() + "/CMakeLists.txt");
-        rpp.setBuildSystemTarget(fg->target->name + '|' + rpp.projectFile);
+        rpp.setBuildSystemTarget(fg->target->name);
         rpp.setDisplayName(fg->target->name + QString::number(counter));
         rpp.setDefines(defineArg.toUtf8());
         rpp.setIncludePaths(includes);