1 new GCC HEAD@168160 regression

[GCC regression tester]

With your recent patch, GCC HEAD revision 168160 had problems on:
native: regress-3 (1 NEW failures)
The previous build was of revision 168159.

Regressions for native:
NEW   gcc.sum gcc.dg/guality/nrv-1.c
old   gcc.sum gcc.dg/guality/pr43479.c
old   gcc.sum gcc.target/i386/pr38240.c

Log information for changes since the last build:
------------------------------------------------------------------------
r168160 | aoliva | 2010-12-21 19:49:00 -0800 (Tue, 21 Dec 2010) | 12 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/dbxout.c
   M /trunk/gcc/dwarf2out.c
   M /trunk/gcc/function.c
   M /trunk/gcc/tree.h
   M /trunk/gcc/var-tracking.c

PR debug/46724
* function.c (assign_parms_augmented_arg_list): Name and mark
DECL of result address as NAMELESS rather than IGNORED.
(assign_parms): Set DECL_VALUE_EXPR for indirect result.
* tree.h (tree_decl_common::decl_flag_2): Document RESULT_DECL.
(DECL_HAS_VALUE_EXPR_P): Accept RESULT_DECL.
* dwarf2out.c (loc_list_from_tree) <RESULT_DECL>: Use
DECL_VALUE_EXPR.
* dbxout.c (dbxout_expand_expr) <RESULT_DECL>: Likewise.
* var-tracking.c (vt_add_function_parameter): New, split out of...
(vt_add_function_parameters): ... this.  Handle incoming
pointer to hold result.
------------------------------------------------------------------------

For more information, see <http://glutton.geoffk.org/HEAD/>.

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-- 
Geoffrey Keating <geoffk@geoffk.org> 
(via an automated GCC regression-testing script.)