Function makeFunctionTypeMapper

test/fixtures/snapshot/typescript.js:63309–63311

(func)

            return { kind: 1 /* TypeMapKind.Array */, sources: sources, targets: targets };
        }
        function makeFunctionTypeMapper(func) {
            return { kind: 2 /* TypeMapKind.Function */, func: func };
        }
        function makeCompositeTypeMapper(kind, mapper1, mapper2) {
            return { kind: kind, mapper1: mapper1, mapper2: mapper2 };
        }