Docker: Auto-detect debugger binaries in docker devices

Change-Id: Iec7c2b16277ea626520372603ae769418e9efd12
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/debugger/debuggerplugin.h

@@ -29,6 +29,7 @@
 #include <extensionsystem/iplugin.h>
 
 namespace ProjectExplorer { class RunControl; }
+namespace Utils { class FilePath; }
 
 namespace Debugger {
 namespace Internal {
@@ -57,6 +58,9 @@ private:
     // Called from GammaRayIntegration
     Q_SLOT void getEnginesState(QByteArray *json) const;
 
+    // Called from DockerDevice
+    Q_SLOT void autoDetectDebuggersForDevice(const Utils::FilePath &deviceRoot);
+
     QVector<QObject *> createTestObjects() const override;
 };