[RFC 0/7] Move language-related stuff out of varobj.c

[Yao Qi <yao@codesourcery.com>]

This patch series is to move language-related stuff out of varobj.c
to ada-varobj.c, c-varobj.c and jv-varobj.c.  This will shorten
varobj.c, and make it easier for varobj support for new languages.

Nowadays, we have 'struct language_specific' which is about language
operations in varobj.  This can be moved out of varobj.c and shared
for different languages.  This is what patch 5/7 does.  Operations
of each language need to know 'struct varobj', so 'struct varobj'
should be moved to varobj.h.  This is what patch 4/7 does.  Note
that we don't move all 'struct varobj' to varobj.h because some fields
are related to dynamic varobj, and make no sense to expose them.
I move basic part of 'struct varobj' to varobj.h, and define a new
struct varobj_dynamic to extend 'struct varobj'.

Then, we can move language related operations out of varobj.c to
c-varobj.c, ada-varobj.c and jv-varobj.c respectively.  This is
done by patch 6/7.

Patch 1/7 - 3/7 are cleanups, to remove unused bits in varobj.c.
Patch 7/7 is a cleanup too.

Note that static array 'languages' is still used in varobj.c, which
is not really necessary.  We can remove it and move each
'struct lang_varobj_ops *' to be a field of 'struct language_defn'.
I don't include this change in this series because I'd like to post
patches for review before I go too far away.

The whole series is tested on x86_64-linux.  Comments?

*** BLURB HERE ***

Yao Qi (7):
  Remove field language in struct language_specific
  Remove vlang_unknown
  Remove field value_of_root
  Move struct varobj to varobj.h.
  New lang-varobj.h
  Move language stuff out of varobj.c
  Remove ada-varobj.h.

 gdb/Makefile.in   |   12 +-
 gdb/ada-varobj.c  |  151 +++++-
 gdb/ada-varobj.h  |   55 --
 gdb/c-varobj.c    |  902 +++++++++++++++++++++++++++
 gdb/gdbtypes.c    |   16 +
 gdb/gdbtypes.h    |    4 +
 gdb/jv-varobj.c   |  104 ++++
 gdb/lang-varobj.h |   79 +++
 gdb/varobj.c      | 1783 +++++++----------------------------------------------
 gdb/varobj.h      |   98 +++-
 10 files changed, 1571 insertions(+), 1633 deletions(-)
 delete mode 100644 gdb/ada-varobj.h
 create mode 100644 gdb/c-varobj.c
 create mode 100644 gdb/jv-varobj.c
 create mode 100644 gdb/lang-varobj.h

-- 
1.7.7.6