BugFix:  - When moving Stores over Phis we must ensure that the store block    is different from the Phi-block, otherwise the post-dominance    did NOT mean we we expect (and a Store is moved from the end of a block    to its start)
BugFix:
 - When moving Stores over Phis we must ensure that the store block
   is different from the Phi-block, otherwise the post-dominance
   did NOT mean we we expect (and a Store is moved from the end of a block
   to its start)

[r8240]

jonashaag/libfirm,8l/libfirm,davidgiven/libfirm,MatzeB/libfirm,davidgiven/libfirm,killbug2004/libfirm,killbug2004/libfirm,killbug2004/libfirm,8l/libfirm,davidgiven/libfirm,8l/libfirm,8l/libfirm,davidgiven/libfirm,davidgiven/libfirm,MatzeB/libfirm,killbug2004/libfirm,jonashaag/libfirm,davidgiven/libfirm,jonashaag/libfirm,MatzeB/libfirm,jonashaag/libfirm,libfirm/libfirm,8l/libfirm,libfirm/libfirm,8l/libfirm,davidgiven/libfirm,jonashaag/libfirm,MatzeB/libfirm,libfirm/libfirm,killbug2004/libfirm,killbug2004/libfirm,MatzeB/libfirm,libfirm/libfirm,jonashaag/libfirm,killbug2004/libfirm,MatzeB/libfirm,8l/libfirm,libfirm/libfirm,jonashaag/libfirm,MatzeB/libfirm