Utils: Remove Debug restriction for useCtrlCStub

process_ctrlc_stub doesn't generate a Ctrl+C event sent via
GenerateConsoleCtrlEvent for the child process to terminate.

So the Debug restriction to workaround QTCREATORBUG-11995 is
no longer needed.

Change-Id: Iafc8b51bce17432c80b0be0c4084978abc1c909f
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/libs/utils/processinterface.h

@@ -58,7 +58,7 @@ public:
     bool m_runAsRoot = false;
     bool m_lowPriority = false;
     bool m_unixTerminalDisabled = false;
-    bool m_useCtrlCStub = false; // release only
+    bool m_useCtrlCStub = false;
     bool m_belowNormalPriority = false; // internal, dependent on other fields and specific code path
 };
 

src/libs/utils/processutils.cpp

@@ -112,14 +112,7 @@ BOOL CALLBACK sendInterruptMessageToAllWindowsOfProcess_enumWnd(HWND hwnd, LPARA
 
 void ProcessHelper::setUseCtrlCStub(bool enabled)
 {
-    // Do not use the stub in debug mode. Activating the stub will shut down
-    // Qt Creator otherwise, because they share the same Windows console.
-    // See QTCREATORBUG-11995 for details.
-#ifdef QT_DEBUG
-    Q_UNUSED(enabled)
-#else
     m_useCtrlCStub = enabled;
-#endif
 }
 
 void ProcessHelper::terminateProcess()

src/libs/utils/processutils.h

@@ -85,7 +85,7 @@ private:
 
     bool m_lowPriority = false;
     bool m_unixTerminalDisabled = false;
-    bool m_useCtrlCStub = false; // release only
+    bool m_useCtrlCStub = false;
     ProcessStartHandler m_processStartHandler;
 };
 

src/libs/utils/qtcprocess.cpp

@@ -1059,14 +1059,7 @@ void QtcProcess::setWorkingDirectory(const FilePath &dir)
 
 void QtcProcess::setUseCtrlCStub(bool enabled)
 {
-    // Do not use the stub in debug mode. Activating the stub will shut down
-    // Qt Creator otherwise, because they share the same Windows console.
-    // See QTCREATORBUG-11995 for details.
-#ifdef QT_DEBUG
-    Q_UNUSED(enabled)
-#else
     d->m_setup.m_useCtrlCStub = enabled;
-#endif
 }
 
 void QtcProcess::start()