Fix the COERCE source transform.
commit999f96be00309bf75534a1491f8ee14b610d6e88
authorStas Boukarev <stassats@gmail.com>
Wed, 20 Dec 2017 17:06:45 +0000 (20 20:06 +0300)
committerStas Boukarev <stassats@gmail.com>
Wed, 20 Dec 2017 17:06:45 +0000 (20 20:06 +0300)
treeb6a1b8a426d95552cf7df24e06f16546ff128a47
parentf0479a805250ee17fd0b24efab7cf56e058ec6f3
Fix the COERCE source transform.

Don't call CSUBTYPEP on NIL which CAREFUL-SPECIFIER-TYPE may return.

Fixes lp#1739450
src/compiler/array-tran.lisp
tests/compiler-2.pure.lisp