Lisp_Symbol       515 src/lisp.h         Lisp_Symbol = 0,
Lisp_Symbol       841 src/lisp.h     struct Lisp_Symbol
Lisp_Symbol       454 test/manual/etags/c-src/emacs/src/lisp.h     Lisp_Symbol = 0,
Lisp_Symbol       654 test/manual/etags/c-src/emacs/src/lisp.h struct Lisp_Symbol