gdb.base/async.exp: Don't hardcode line numbers.

gdb/testsuite/
2014-03-19  Pedro Alves  <palves@redhat.com>

	* gdb.base/async.c (main): Add "jump here" and "until here" line
	marker comments.
	* gdb.base/async.exp (jump_here): New global.
	(jump& test): Use it.
	(until_here): New global.
	(until& test): Use it.

1 files changed, 2 insertions, 2 deletions

diff --git a/gdb/testsuite/gdb.base/async.c b/gdb/testsuite/gdb.base/async.c
index 0d9c8752b7..fb5308248a 100644
--- a/gdb/testsuite/gdb.base/async.c
+++ b/gdb/testsuite/gdb.base/async.c
@@ -30,9 +30,9 @@ main ()
  z = 9;
  y = foo ();
  z = y;
- y = y + 2;
+ y = y + 2; /* jump here */
  y = baz ();
- return 0;
+ return 0; /* until here */
 }