[gdb/testsuite] Fix gdb.base/info-macros.exp with check-read1

[gdb/testsuite] Fix gdb.base/info-macros.exp with check-read1

With check-read1 we run into:
...
FAIL: gdb.base/info-macros.exp: info macros info-macros.c:42 (timeout)
...

Fix this by using gdb_test_lines from gdb.base/info-types.exp.tcl.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2021-06-08  Tom de Vries  <tdevries@suse.de>

	* gdb.base/info-types.exp.tcl (match_line, gdb_test_lines): Move ...
	* lib/gdb.exp: ... here.
	* gdb.base/info-macros.exp: Use gdb_test_lines.