Handle Alloc in interpreter.
Handle Alloc in interpreter.

diku-dk/futhark,mrakgr/futhark,diku-dk/futhark,HIPERFIT/futhark,mrakgr/futhark,ihc/futhark,diku-dk/futhark,ihc/futhark,diku-dk/futhark,CulpaBS/wbBach,HIPERFIT/futhark,diku-dk/futhark,ihc/futhark,mrakgr/futhark,HIPERFIT/futhark