Consistently set weights for monsters that leave corpses of different

types (mostly uniques). This doesn't affect whether they leave corpses.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8252 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on January 5, 2009
3PZ6XEMTJYAAEWHHUBL6SSM2J3HWSQCB3EIXZGN64P4SFJT25R7AC
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