Fix repeated messages when getting HP/MP restored interrupts with

multiple delays queued (e.g., when butchering several items.) However, this fix means that Lua can't suppress the "HP restored" message on the relevant interrupt. If this is a problem it should be changed. Fixes [2494104].

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8749 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on January 25, 2009
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