This command does not work when testing with GDBserver. So this patch
changes the few tests that do not specifically test the `start' command,
and replace calls to gdb_start_cmd with the usual `run LOC' approach.
For the couple of testcases that do really test the `start' command,
do an early return as UNTESTED instead of running this testcase.
gdb/testsuite/ChangeLog:
Add marker to be used as anchor for inserting breakpoints.
* gdb.ada/null_record/null_record.adb: Add "-- START" comment.
* gdb.ada/start/dummy.adb, gdb.ada/uninitialized_vars/parse.adb:
Likewise.
Remove uses of gdb_start_cmd.
* gdb.ada/null_record.exp: Remove use of gdb_start_cmd.
* gdb.ada/print_pc.exp, gdb.ada/uninitialized_vars.exp: Ditto.
Do not run testcase if testing with GDBserver.
* gdb.ada/exec_changed.exp, gdb.ada/start.exp: Abort as untested
if testing with GDBserver.
