Flag non-nullable functions in if statements as errors (tree walk version) - #33178

Flag non-nullable functions in if statements as errors (tree walk version)#33178

Orta Therox (orta) merged 5 commits into

microsoft:mastermicrosoft/TypeScript:masterfrom

jwbay:nonNullableCallSignaturesTreeWalkjwbay/TypeScript:nonNullableCallSignaturesTreeWalkCopy head branch name to clipboard