ClangTools: Add settings for build project dependency

All Clang tools get support for running project build
before themselves or skipping that step.
Before this change static analyzer always ran it and
ClangTidy+Clazy tool always skipped.

Change-Id: Idb9fbc27f0589472abb0f9d207857eb79c0079fd
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/clangtools/clangtoolssettings.h

@@ -25,29 +25,42 @@
 
 #pragma once
 
+#include <QObject>
 #include <QString>
 
 namespace ClangTools {
 namespace Internal {
 
-class ClangToolsSettings
+class ClangToolsSettings : public QObject
 {
+    Q_OBJECT
 public:
     static ClangToolsSettings *instance();
 
     void writeSettings();
 
     int savedSimultaneousProcesses() const;
+    bool savedBuildBeforeAnalysis() const;
 
     int simultaneousProcesses() const;
     void setSimultaneousProcesses(int processes);
 
+    int buildBeforeAnalysis() const;
+    void setBuildBeforeAnalysis(bool build);
+
+signals:
+    void buildBeforeAnalysisChanged(bool checked) const;
+
 private:
     ClangToolsSettings();
     void readSettings();
 
+    void updateSavedBuildBeforeAnalysiIfRequired();
+
     int m_simultaneousProcesses = -1;
     int m_savedSimultaneousProcesses = -1;
+    bool m_buildBeforeAnalysis = false;
+    bool m_savedBuildBeforeAnalysis= false;
 };
 
 } // namespace Internal