it's local to foobar. Check for it there, and check that it's not
present in main.
* gdb.c++/local.cc (marker2): New function.
(foobar): Call marker1.
(main): Call marker2 instead of marker1.
* gdb.c++/local.cc (main): Move call to marker1() inside nested
scope so that the nested scope tests will make sense.
* gdb.c++/local.exp: Write patterns that actually work with gcc
(the HP patterns "were never known to work with gcc").
Keep the old aCC patterns too.