Eliminate literal line numbers in mi-console.exp

Remove the literal line number from a regexp in mi-console.exp.  Add
an appropriate eye-catcher to mi-console.c and refer to that instead.

gdb/testsuite/ChangeLog:

	* gdb.mi/mi-console.c: Add eye-catcher.
	* gdb.mi/mi-console.exp (semihosted_string): Refer to eye-catcher
	instead of literal line number.

1 files changed, 1 insertions, 1 deletions

diff --git a/gdb/testsuite/gdb.mi/mi-console.c b/gdb/testsuite/gdb.mi/mi-console.c
index ffed9f0..0cd2243 100644
--- a/gdb/testsuite/gdb.mi/mi-console.c
+++ b/gdb/testsuite/gdb.mi/mi-console.c
@@ -11,4 +11,4 @@ int
 main ()
 {
   hello ();
-}
+} /* after-hello */