[patch] Move mode-switching to its own file

[Zack Weinberg]

Steven Bosscher <stevenb@suse.de> writes:

> 	* lcm.c: Move all mode-switching related functions from here...
> 	* mode-switching.c: ...this new file.
                               ^ to this new file.

> 	* doc/passes.texi: Update accordingly.

OK.

zw