Debugger: Remove queued commands in GDB engine

Instead, always pipe them into the GDB process, even if the inferior
is not stopped. The original need to hold back commands until
the inferior is stopped seems to be long gone.

Change-Id: I234fdd067d78966c9896f1fa85a134900bf6dec7
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>

src/plugins/debugger/gdb/gdbengine.h

@@ -168,8 +168,6 @@ private: ////////// Gdb Command Management //////////
         LosesChild = 64,
         // Trigger breakpoint model rebuild when no such commands are pending anymore.
         RebuildBreakpointModel = 128,
-        // This command needs to be send immediately.
-        Immediate = 256,
         // This is a command that needs to be wrapped into -interpreter-exec console
         ConsoleCommand = 512,
         // This is the UpdateLocals commannd during which we ignore notifications
@@ -188,7 +186,6 @@ protected:
                      int flags = NoFlags,
                      DebuggerCommand::Callback callback = DebuggerCommand::Callback());
 private:
-    void flushQueuedCommands();
     Q_SLOT void commandTimeout();
     void setTokenBarrier();
 
@@ -214,7 +211,6 @@ private:
     // This function is called after all previous responses have been received.
     CommandsDoneCallback m_commandsDoneCallback;
 
-    QList<DebuggerCommand> m_commandsToRunOnTemporaryBreak;
     bool m_rerunPending;
 
 private: ////////// Gdb Output, State & Capability Handling //////////
@@ -259,7 +255,6 @@ private: ////////// Inferior Management //////////
     void continueInferior();
     void interruptInferior();
     virtual void interruptInferior2() {}
-    void interruptInferiorTemporarily();
 
     void executeRunToLine(const ContextData &data);
     void executeRunToFunction(const QString &functionName);
@@ -447,7 +442,7 @@ protected:
     QString m_lastMissingDebugInfo;
     BreakpointResponseId m_qFatalBreakpointResponseId;
     bool m_terminalTrap;
-
+    bool m_temporaryStopPending;
     bool usesExecInterrupt() const;
 
     QHash<int, QByteArray> m_scheduledTestResponses;