Disable action for non-c++ projects

Change-Id: I7ccdd3d364c7761cd1206d526f4e6f7ada133ebf
Task-number: QCE-59
Reviewed-by: Andre Poenitz <andre.poenitz@theqtcompany.com>
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>

plugins/clangstaticanalyzer/clangstaticanalyzerruncontrolfactory.cpp

@@ -24,6 +24,8 @@
 #include <analyzerbase/analyzerruncontrol.h>
 #include <analyzerbase/analyzerstartparameters.h>
 
+#include <coreplugin/icontext.h>
+
 #include <cpptools/cppmodelmanager.h>
 #include <cpptools/cppprojects.h>
 
@@ -31,6 +33,8 @@
 #include <projectexplorer/gcctoolchain.h>
 #include <projectexplorer/kit.h>
 #include <projectexplorer/kitinformation.h>
+#include <projectexplorer/project.h>
+#include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/session.h>
 #include <projectexplorer/target.h>
 #include <projectexplorer/toolchain.h>
@@ -58,6 +62,12 @@ bool ClangStaticAnalyzerRunControlFactory::canRun(RunConfiguration *runConfigura
     if (runMode != Constants::CLANGSTATICANALYZER_RUN_MODE)
         return false;
 
+    Project *project = runConfiguration->target()->project();
+    QTC_ASSERT(project, return false);
+    const Core::Context context = project->projectLanguages();
+    if (!context.contains(ProjectExplorer::Constants::LANG_CXX))
+        return false;
+
     Target *target = runConfiguration->target();
     QTC_ASSERT(target, return false);
     Kit *kit = target->kit();