Add two gnu extensions DW_AT definition and tracing

(no functional changes, except that these values will be visible
in the dwarf trace, instead of DW_AT_???)



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14611 a5019735-40e9-0310-863c-91ae7b9d1cf9
2 files changed