gdb: rename dwarf2_per_objfile variables/fields to per_objfile

While doing the psymtab-sharing patchset, I avoided renaming variables
unnecessarily to avoid adding noise to patches, but I'd like to do it
now.  Basically, we have these dwarf2 per-something structures:

  - dwarf2_per_objfile
  - dwarf2_per_bfd
  - dwarf2_per_cu_data

I named the instances of dwarf2_per_bfd `per_bfd` and most of instances
of dwarf2_per_cu_data are called `per_cu`.  Most pre-existing instances
of dwarf2_per_objfile are named `dwarf2_per_objfile`.  For consistency
with the other type, I'd like to rename them to just `per_objfile`.  The
`dwarf2_` prefix is superfluous, since it's already clear we are in
dwarf2 code.  It also helps reducing the line wrapping by saving 7
precious columns.

gdb/ChangeLog:

	* dwarf2/comp-unit.c, dwarf2/comp-unit.h, dwarf2/index-cache.c,
	dwarf2/index-cache.h, dwarf2/index-write.c,
	dwarf2/index-write.h, dwarf2/line-header.c,
	dwarf2/line-header.h, dwarf2/macro.c, dwarf2/macro.h,
	dwarf2/read.c, dwarf2/read.h: Rename struct dwarf2_per_objfile
	variables and fields from `dwarf2_per_objfile` to just
	`per_objfile` throughout.

Change-Id: I3c45cdcc561265e90df82cbd36b4b4ef2fa73aef

1 files changed, 2 insertions, 2 deletions

diff --git a/gdb/dwarf2/index-write.h b/gdb/dwarf2/index-write.h
index 5ba1725..4710205 100644
--- a/gdb/dwarf2/index-write.h
+++ b/gdb/dwarf2/index-write.h
@@ -33,7 +33,7 @@
    same, but for the dwz file's index.  */
 
 extern void write_psymtabs_to_index
-  (struct dwarf2_per_objfile *dwarf2_per_objfile, const char *dir,
-   const char *basename, const char *dwz_basename, dw_index_kind index_kind);
+  (dwarf2_per_objfile *per_objfile, const char *dir, const char *basename,
+   const char *dwz_basename, dw_index_kind index_kind);
 
 #endif /* DWARF_INDEX_WRITE_H */