EA-61903 - NPE: PopFrameAction.a

(cherry picked from commit 5dadd2b56a67d28a53c5b1694e1c986b61b20be3)
EA-61092 - NPE: BreakpointItem.showInEditor

(cherry picked from commit 77c5cdf90f196a28a19e173f98612ba756c2aa5e)