fix some tests that were presumably meant to use StreamBlock but didn't
fix some tests that were presumably meant to use StreamBlock but didn't

mikedingjan/wagtail,kurtrwall/wagtail,inonit/wagtail,jordij/wagtail,kurtrwall/wagtail,tangentlabs/wagtail,zerolab/wagtail,rjsproxy/wagtail,jorge-marques/wagtail,KimGlazebrook/wagtail-experiment,stevenewey/wagtail,davecranwell/wagtail,davecranwell/wagtail,takeflight/wagtail,quru/wagtail,mayapurmedia/wagtail,chrxr/wagtail,jnns/wagtail,jorge-marques/wagtail,WQuanfeng/wagtail,zerolab/wagtail,thenewguy/wagtail,Klaudit/wagtail,nealtodd/wagtail,quru/wagtail,janusnic/wagtail,nilnvoid/wagtail,hanpama/wagtail,Pennebaker/wagtail,darith27/wagtail,mixxorz/wagtail,WQuanfeng/wagtail,iho/wagtail,nimasmi/wagtail,jordij/wagtail,JoshBarr/wagtail,mixxorz/wagtail,dresiu/wagtail,taedori81/wagtail,rsalmaso/wagtail,darith27/wagtail,mephizzle/wagtail,thenewguy/wagtail,gasman/wagtail,gasman/wagtail,marctc/wagtail,mikedingjan/wagtail,kaedroho/wagtail,rv816/wagtail,hamsterbacke23/wagtail,gasman/wagtail,takeshineshiro/wagtail,darith27/wagtail,hanpama/wagtail,JoshBarr/wagtail,hanpama/wagtail,quru/wagtail,m-sanders/wagtail,gasman/wagtail,gogobook/wagtail,thenewguy/wagtail,rv816/wagtail,mixxorz/wagtail,WQuanfeng/wagtail,wagtail/wagtail,Pennebaker/wagtail,mephizzle/wagtail,timorieber/wagtail,mjec/wagtail,gogobook/wagtail,tangentlabs/wagtail,Tivix/wagtail,Tivix/wagtail,rsalmaso/wagtail,nrsimha/wagtail,serzans/wagtail,taedori81/wagtail,mixxorz/wagtail,mephizzle/wagtail,nilnvoid/wagtail,Pennebaker/wagtail,m-sanders/wagtail,FlipperPA/wagtail,chrxr/wagtail,iansprice/wagtail,nutztherookie/wagtail,torchbox/wagtail,iho/wagtail,bjesus/wagtail,janusnic/wagtail,FlipperPA/wagtail,takeflight/wagtail,wagtail/wagtail,nimasmi/wagtail,KimGlazebrook/wagtail-experiment,jnns/wagtail,KimGlazebrook/wagtail-experiment,mephizzle/wagtail,rsalmaso/wagtail,Toshakins/wagtail,iansprice/wagtail,chrxr/wagtail,rv816/wagtail,kaedroho/wagtail,rjsproxy/wagtail,kurtw/wagtail,nrsimha/wagtail,nealtodd/wagtail,wagtail/wagtail,serzans/wagtail,Klaudit/wagtail,takeshineshiro/wagtail,dresiu/wagtail,jorge-marques/wagtail,Toshakins/wagtail,wagtail/wagtail,kaedroho/wagtail,JoshBarr/wagtail,rv816/wagtail,mjec/wagtail,janusnic/wagtail,inonit/wagtail,janusnic/wagtail,stevenewey/wagtail,zerolab/wagtail,rsalmaso/wagtail,serzans/wagtail,iho/wagtail,nrsimha/wagtail,Tivix/wagtail,stevenewey/wagtail,iansprice/wagtail,rsalmaso/wagtail,FlipperPA/wagtail,jorge-marques/wagtail,FlipperPA/wagtail,jnns/wagtail,inonit/wagtail,kurtw/wagtail,kurtrwall/wagtail,timorieber/wagtail,wagtail/wagtail,nealtodd/wagtail,mayapurmedia/wagtail,dresiu/wagtail,torchbox/wagtail,Pennebaker/wagtail,tangentlabs/wagtail,mayapurmedia/wagtail,jordij/wagtail,nilnvoid/wagtail,jorge-marques/wagtail,nrsimha/wagtail,bjesus/wagtail,davecranwell/wagtail,Klaudit/wagtail,mjec/wagtail,iho/wagtail,takeflight/wagtail,marctc/wagtail,taedori81/wagtail,Toshakins/wagtail,nealtodd/wagtail,taedori81/wagtail,JoshBarr/wagtail,dresiu/wagtail,dresiu/wagtail,davecranwell/wagtail,kurtrwall/wagtail,Klaudit/wagtail,mjec/wagtail,nimasmi/wagtail,stevenewey/wagtail,timorieber/wagtail,mixxorz/wagtail,mikedingjan/wagtail,marctc/wagtail,hamsterbacke23/wagtail,Toshakins/wagtail,nutztherookie/wagtail,takeshineshiro/wagtail,rjsproxy/wagtail,iansprice/wagtail,quru/wagtail,hanpama/wagtail,gogobook/wagtail,torchbox/wagtail,gasman/wagtail,nutztherookie/wagtail,m-sanders/wagtail,hamsterbacke23/wagtail,taedori81/wagtail,bjesus/wagtail,mayapurmedia/wagtail,hamsterbacke23/wagtail,tangentlabs/wagtail,marctc/wagtail,thenewguy/wagtail,gogobook/wagtail,jnns/wagtail,takeshineshiro/wagtail,nutztherookie/wagtail,WQuanfeng/wagtail,nimasmi/wagtail,serzans/wagtail,Tivix/wagtail,kurtw/wagtail,mikedingjan/wagtail,zerolab/wagtail,jordij/wagtail,kaedroho/wagtail,m-sanders/wagtail,rjsproxy/wagtail,kurtw/wagtail,darith27/wagtail,kaedroho/wagtail,nilnvoid/wagtail,inonit/wagtail,zerolab/wagtail,KimGlazebrook/wagtail-experiment,takeflight/wagtail,bjesus/wagtail,timorieber/wagtail,thenewguy/wagtail,torchbox/wagtail,chrxr/wagtail