* obj.h (struct format_ops <app_file>): Add int param.
* read.h (s_app_file_string): Likewise.
* read.c (s_app_file_string): Likewise.
(s_app_file): Adjust s_app_file_string call.
* config/tc-mips.c (s_mips_file): Likewise.
* config/obj-coff.h (obj_app_file): Add app param.
* config/obj-ecoff.h (obj_app_file): Likewise.
* config/obj-multi.h (obj_app_file): Likewise.
* config/obj-elf.h (elf_file_symbol): Likewise.
* config/obj-elf.c (elf_file_symbol): Only emit one file symbol
if called for # preprocessor lines.