bug in switch desugaring (missing scope for temps)
bug in switch desugaring (missing scope for temps)

svn path=/trunk/StrategoXT/; revision=9620

metaborg/strategoxt,metaborg/strategoxt,lichtemo/strategoxt,Apanatshka/strategoxt,lichtemo/strategoxt,Apanatshka/strategoxt,lichtemo/strategoxt,metaborg/strategoxt,metaborg/strategoxt,metaborg/strategoxt,lichtemo/strategoxt,lichtemo/strategoxt,Apanatshka/strategoxt,Apanatshka/strategoxt,Apanatshka/strategoxt