Fix debugger detection when attaching from output pane.

Obtain RunConfiguration from RunControl add logic to
use the ABI if that fails.

Task-number: QTCREATORBUG-7677

Change-Id: Iebf053e6b7a25644a4d4c02b80bf952ef9e6a078
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/projectexplorer/runconfiguration.cpp

@@ -558,6 +558,11 @@ Abi RunControl::abi() const
     return Abi();
 }
 
+RunConfiguration *RunControl::runConfiguration() const
+{
+    return m_runConfiguration.data();
+}
+
 ProcessHandle RunControl::applicationProcessHandle() const
 {
     return m_applicationProcessHandle;