Orb guardians are no longer valid polymorph targets.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1570 c06c8d41-db1a-0410-9941-cceddc491573
LP5MU6UP3OYGF6NFKN25QOQI7WDXZYGX5CHW37VN4L37BT65REFAC
IWUBCC6Y7VW7FIF6ULA3XQVQW73M5A6XOYLTSU4HSP2LKAGTUMFAC
K2CS6TCX2NDVL2ASEHGP4J4K4IJ6FP3ANNKTSIWVG43HPYSBX6ZQC
O5A2BYFCOHSSDRZH3VAS2OYEJ2LBSZYNIQ4AB3BKZ2AWTNYLJ2JQC
// Other poly-unsuitable things
|| new_mclass == MONS_ORB_GUARDIAN
#ifndef _XOPEN_SOURCE_EXTENDED
#endif