Add regression test for dotnet/corert#6016 (#30664)
Add regression test for dotnet/corert#6016 (#30664)


shimingsg/corefx,ViktorHofer/corefx,Jiayili1/corefx,ericstj/corefx,ptoonen/corefx,Jiayili1/corefx,Jiayili1/corefx,Jiayili1/corefx,ericstj/corefx,shimingsg/corefx,wtgodbe/corefx,ViktorHofer/corefx,ViktorHofer/corefx,mmitche/corefx,mmitche/corefx,ptoonen/corefx,wtgodbe/corefx,mmitche/corefx,ViktorHofer/corefx,mmitche/corefx,ericstj/corefx,BrennanConroy/corefx,Jiayili1/corefx,wtgodbe/corefx,ptoonen/corefx,shimingsg/corefx,ViktorHofer/corefx,shimingsg/corefx,Jiayili1/corefx,ericstj/corefx,ericstj/corefx,wtgodbe/corefx,ptoonen/corefx,mmitche/corefx,mmitche/corefx,ptoonen/corefx,shimingsg/corefx,BrennanConroy/corefx,shimingsg/corefx,wtgodbe/corefx,ViktorHofer/corefx,wtgodbe/corefx,ericstj/corefx,shimingsg/corefx,BrennanConroy/corefx,ptoonen/corefx,wtgodbe/corefx,ericstj/corefx,ptoonen/corefx,mmitche/corefx,Jiayili1/corefx,ViktorHofer/corefx