[PING][PATCH] Allow DW_OP_GNU_uninit in dwarf_expr_require_composition

[Andreas Arnez]

Ping:

  https://sourceware.org/ml/gdb-patches/2016-04/msg00602.html

> gdb/ChangeLog:
> 
> 	* dwarf2expr.c (dwarf_expr_require_composition): Allow
> 	DW_OP_GNU_uninit.
> 	(execute_stack_op): Use dwarf_expr_require_composition instead of
> 	copying its logic.

--
Andreas