Hi,

This bug deals with anonymous structs/unions in varobj. As in: anonymous 
structs/unions are unaddressable by MI clients.

This bug has been sitting around for quite some time. Vladimir Prus 
first mentioned this in 2006 (yikes!), and this bug was filed in 2009. 
At this time, Nick Roberts responded to the bug with a patch that fixed 
the problem.

I don't know why Nick never submitted the patch here, so I've tweaked 
his original patch and written some tests for it, and I am now 
submitting this.

Tested on x86_64-linux.

Keith

ChangeLog
2011-11-11  Keith Seitz  <keiths@redhat.com>

	Based on work by Nick Roberts  <nickrob@snap.net.nz>:
	* varobj.c (c_describe_child): Synthesize a variable name for
	anonymous structs and unions.
	(cplus_describe_child): Likewise.

testsuite/ChangeLog
2011-11-11  Keith Seitz  <keiths@redhat.com>

	* gdb.mi/mi-var-cp.cc (anonymous_structs): New function.
	(class A): New class.
	(class B): New class.
	(main): Call anonymous_structs.
	* gdb.mi/mi-var-cp.exp: Add anonymous struct tests and
	adjust test results.
	* gdb.mi/mi2-var-cp.exp: Likewise.
	* gdb.mi/var-cmd.c (struct _simple_struct): Add two anonymous
	structs.
	* gdb.mi/mi-var-dislay.exp: Add anonymous struct tests and
	adjust test results.
	* gdb.mi/mi2-var-display.exp: Likewise.