PE: Promote protected methods to public in SimpleTargetRunner

And in DebuggerRunTool.

Task-number: QTCREATORBUG-29168
Change-Id: Iaf46cc940dec80db07edb7f159ed477c3e1ce009
Reviewed-by: hjk <hjk@qt.io>

src/plugins/debugger/debuggerruncontrol.h

@@ -85,7 +85,6 @@ public:
     void addQmlServerInferiorCommandLineArgumentIfNeeded();
     void setupPortsGatherer();
 
-protected:
     bool isCppDebugging() const;
     bool isQmlDebugging() const;
 

src/plugins/projectexplorer/runcontrol.h

@@ -287,7 +287,6 @@ public:
     explicit SimpleTargetRunner(RunControl *runControl);
     ~SimpleTargetRunner() override;
 
-protected:
     void setStartModifier(const std::function<void()> &startModifier);
 
     Utils::CommandLine commandLine() const;