[binutils-gdb] Add tests for loop_break and loop_continue commands

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT 9521ecda6835b338d61b1b06e1a91706711b1d0b ***

Author: Simon Marchi <simon.marchi@ericsson.com>
Branch: master
Commit: 9521ecda6835b338d61b1b06e1a91706711b1d0b

Add tests for loop_break and loop_continue commands

I grepped the testsuite for loop_break and loop_continue and didn't find
anything, so I wrote some simple tests for those.

gdb/testsuite/ChangeLog:

	* gdb.base/commands.exp: Call the new procedures.
	(loop_break_test, loop_continue_test): New procedures.