AutoTest: Add optional verbosity for Qt tests

Add options allowing verbose benchmarks and logging
of signals and slots inside Qt tests.
Beside this fixing a typo (recognition of results
of type info) inside the plain text reader.

Change-Id: Iaba7112c55bf30213584e56858d096c8f78307d0
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/autotest/qtest/qttestconfiguration.cpp

@@ -67,6 +67,12 @@ QStringList QtTestConfiguration::argumentsForTestRunner() const
     if (!metricsOption.isEmpty())
         arguments << metricsOption;
 
+    if (qtSettings->verboseBench)
+        arguments << "-vb";
+
+    if (qtSettings->logSignalsSlots)
+        arguments << "-vs";
+
     if (runMode() == DebuggableTestConfiguration::Debug) {
         if (qtSettings->noCrashHandler)
             arguments << "-nocrashhandler";