AutoTest: Clean up header mess

Better decoupling and reduced binary size.

Change-Id: I4f6239979d9d7dae4ad92f19ec8420be38372c07
Reviewed-by: David Schulz <david.schulz@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/autotest/testrunner.h

@@ -26,8 +26,6 @@
 #pragma once
 
 #include "autotest_global.h"
-
-#include "testconfiguration.h"
 #include "testresult.h"
 
 #include <QDialog>
@@ -43,13 +41,13 @@ class QLabel;
 class QProcess;
 QT_END_NAMESPACE
 
-namespace ProjectExplorer {
-class Project;
-}
+namespace ProjectExplorer { class Project; }
 
 namespace Autotest {
 
 enum class TestRunMode;
+class TestConfiguration;
+class TestOutputReader;
 
 namespace Internal {