(matlab-block-comment-start-re, matlab-block-comment-end-re):
New regular expressions used to find the start/end of a block comment.
(matlab-ltype-block-comment-start, matlab-ltype-block-comment-end):
New predicates to check for block comment features.
(matlab-find-block-comments, matlab-ltype-block-comm-1):
Use new block comment expressions instead of hand-written regexps.
(matlab-ltype-block-comm-at-start, matlab-ltype-block-comm-at-end)
(matlab-electric-block-comment):
Use new block comment predicates.
indents.m:
Add some block comment indentation tests with valid and invalid block
comment starts.