Update getState and getLocals for compatibility with canary
Update getState and getLocals for compatibility with canary

This change is necessary but not sufficient to use the ember inspector
with current canary. I will file a separate issue for the remaining
incompatibility.

teddyzeenny/ember-extension,sivakumar-kailasam/ember-inspector,pete-the-pete/ember-inspector,teddyzeenny/ember-inspector,jryans/ember-inspector,cibernox/ember-inspector,emberjs/ember-inspector,aceofspades/ember-inspector,teddyzeenny/ember-extension,maheshsenni/ember-inspector,teddyzeenny/ember-inspector,jryans/ember-inspector,sly7-7/ember-inspector,sly7-7/ember-inspector,emberjs/ember-inspector,karthiick/ember-inspector,NikkiDreams/ember-inspector,Patsy-issa/ember-inspector,karthiick/ember-inspector,pete-the-pete/ember-inspector,cibernox/ember-inspector,maheshsenni/ember-inspector,Patsy-issa/ember-inspector,aceofspades/ember-inspector,sivakumar-kailasam/ember-inspector,NikkiDreams/ember-inspector