Add cases for tuple-SOACs to inliner.
Add cases for tuple-SOACs to inliner.

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