Temporarily disabled GC (again) because phobos fails to compile with it (looks like some ObjSymbols are being falsely collected, see Library.d:666) Getting rid of global state (i.e global and static variables) to allow running concurrent compilation

module dmd.ILS;

enum ILS
{
    ILSuninitialized,	// not computed yet
    ILSno,		// cannot inline
    ILSyes,		// can inline
}