AutoTest: Add gtest filter mode

This adds another grouping mode to the gtest framework based on
gtest filtering. You can now specify a filter that will be used
to group the gtest tree items into matching and non-matching
tests.

Change-Id: Iaf0e55c9e57e2720f4fa84ab4b51ecaeb614df88
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/autotest/gtest/gtestframework.h

@@ -26,6 +26,7 @@
 #pragma once
 
 #include "../itestframework.h"
+#include "gtestconstants.h"
 
 namespace Autotest {
 namespace Internal {
@@ -39,6 +40,8 @@ public:
     IFrameworkSettings *createFrameworkSettings() const override;
     ITestSettingsPage *createSettingsPage(QSharedPointer<IFrameworkSettings> settings) const override;
     bool hasFrameworkSettings() const override;
+    static GTest::Constants::GroupMode groupMode();
+    static QString currentGTestFilter();
 protected:
     ITestParser *createTestParser() const override;
     TestTreeItem *createRootNode() const override;