is_pty_from_symbol 1888 src/process.c        XPROCESS (proc)->pty_in = is_pty_from_symbol (XCAR (tem));
is_pty_from_symbol 1889 src/process.c        XPROCESS (proc)->pty_out = is_pty_from_symbol (XCDR (tem));
is_pty_from_symbol 1894 src/process.c  	is_pty_from_symbol (tem);