Function declareSynthIdentifier

test/fixtures/snapshot/typescript.js:152072–152075

(synthId)

            return synthPattern.bindingPattern;
        }
        function declareSynthIdentifier(synthId) {
            synthId.hasBeenDeclared = true;
            return synthId.identifier;
        }
        function isSynthIdentifier(bindingName) {
            return bindingName.kind === 0 /* SynthBindingNameKind.Identifier */;
        }