[NFC][clang] Fix static analyzer concerns

[Fznamznon]

Summary

ToolInvocation frees resources in the destructor but doesn't
have user-written copy c'tor or assignment operator, so copying it using
default ones can cause double free.

[aaron.ballman]

LGTM, though I find the whole OwnsAction business to be a code smell. I think it'd be somewhat involved trying to address that though, so these changes are reasonable.

clang/include/clang/Tooling/Tooling.h

public:
   /// \param PCHContainerOps The PCHContainerOperations for loading and creating
   /// clang modules.
   ToolInvocation(std::vector<std::string> CommandLine, ToolAction *Action,
                  FileManager *Files,
                  std::shared_ptr<PCHContainerOperations> PCHContainerOps);
 
   ~ToolInvocation();
 
+  ToolInvocation(const ToolInvocation &) = delete;
+  ToolInvocation &operator=(const ToolInvocation &) = delete;
+
   /// Set a \c DiagnosticConsumer to use during driver command-line parsing and
   /// the action invocation itself.
   void setDiagnosticConsumer(DiagnosticConsumer *DiagConsumer) {
     this->DiagConsumer = DiagConsumer;
   }
 
   /// Set a \c DiagnosticOptions to use during driver command-line parsing.
   void setDiagnosticOptions(DiagnosticOptions *DiagOpts) {