Checkpoint first step of merge.

Checkpoint first step of merge.
Moved per-file data into a separate object from the profile handle.
Dropped some old MacOS 9 code.

* prof_int.h: Include Mac OS X versions of header files if appropriate.  Only
include prof_err.h if profile.h doesn't define ERROR_TABLE_BASE_prof.
(struct _prf_data_t): Move most of contents of _prf_file_t here.  Add reference
count.
(prf_data_t): New typedef.
(struct _prf_file_t): Include an array of one _prf_data_t structure.
* prof_file.c (profile_open_file): Fill in "data" field.  Drop some old Mac
specific code.
(profile_flush_file_data): Renamed from profile_flush_file, now takes
prf_data_t argument.
(profile_flush_file_data): Likewise.
(profile_free_file): Now calls profile_free_file_data.
(profile_free_file_data): New function, with most of old profile_free_file
code.
* prof_init.c (profile_init_path): Removed old Mac version.
(profile_ser_size, profile_ser_externalize): Get file data from new "data"
field.
* prof_set.c (rw_setup, profile_update_relation, profile_clear_relation,
profile_rename_section, profile_add_relation): Likewise.
* prof_tree.c (profile_node_iterator): Likewise.
* test_profile.c (do_batchmode): Likewise.
* prof_int.h (profile_flush_file): Now a macro.
* prof_err.et (PROF_MAGIC_FILE_DATA): New error code value.

ticket: 1237
status: open

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@15037 dc483132-0cff-0310-8789-dd5450dbe970