Analyzer: Move runMode member from IAnalyzerTool to AnalyzerAction

Slim down tool before dissolving.

Change-Id: I502aaa8860293acf8bfd93f541b751d5b96a9563
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>

src/plugins/valgrind/memchecktool.h

@@ -139,6 +139,7 @@ public:
     MemcheckWithGdbTool(QObject *parent);
 
 protected:
+    void startTool(Analyzer::StartMode mode);
     MemcheckRunControl *createMemcheckRunControl(
             const Analyzer::AnalyzerStartParameters &sp,
             ProjectExplorer::RunConfiguration *runConfiguration) Q_DECL_OVERRIDE;