for review: bug fix for det tag_switch problem

[Fergus Henderson]

Tyson Richard DOWD <trd at hydra.cs.mu.oz.au> writes:

>Do you have a test case for the test suite?

I've just added a regression test for this bug.

tests/valid/Mmake:
tests/valid/subtype_switch.m:
	Add new regression test for det switches on subtypes.

--
Fergus Henderson <fjh at cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>   |  of excellence is a lethal habit"
PGP: finger fjh at 128.250.37.3         |     -- the last words of T. S. Garp.