Scenario:
- Create C/C++ Application project
- Create C file with this code:
-------------------------------------
#include <stdlib.h>
#include "newmain.h"

int f() {
    return 0;
}

int f2() {
    return 0;
}

int main(int argc, char** argv) {   
    return (EXIT_SUCCESS);
}

-------------------------------------
- Save file

At this point Failed Include directive annotation will be appeared in editor and broken icon for the project in Projects
Explorer and it is correct


- Create C header file newmain.h with this code:
-------------------------------------

int f();
int f2();

Save file

And now it is supposed that broken icon for project will disappear as well as Failed Include annotation in editor ->
FAILED,  you should turn off and then turn on Code Assist to fix this issue

I want to notice that hyperlink works correctly anf opens definition of functions in header file, but hyperlink for 
"include " doesn't work