Clang: Activate clang crash recovery

Change-Id: I382a4d433ef64dedfeb39034df93579e7eb2580c
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/tools/clangbackend/clangbackendmain.cpp

@@ -53,6 +53,8 @@ int main(int argc, char *argv[])
 
     ClangBackEnd::Messages::registerMessages();
 
+    clang_toggleCrashRecovery(true);
+
     ClangBackEnd::ClangIpcServer clangIpcServer;
     ClangBackEnd::ConnectionServer connectionServer(application.arguments()[1]);
     connectionServer.start();