Function getUndefinedStrippedTargetIfNeeded

test/fixtures/snapshot/typescript.js:65371–65379

(source, target)

                return 0 /* Ternary.False */;
            }
            function getUndefinedStrippedTargetIfNeeded(source, target) {
                // As a builtin type, `undefined` is a very low type ID - making it almsot always first, making this a very fast check to see
                // if we need to strip `undefined` from the target
                if (source.flags & 1048576 /* TypeFlags.Union */ && target.flags & 1048576 /* TypeFlags.Union */ &&
                    !(source.types[0].flags & 32768 /* TypeFlags.Undefined */) && target.types[0].flags & 32768 /* TypeFlags.Undefined */) {
                    return extractTypesOfKind(target, ~32768 /* TypeFlags.Undefined */);
                }
                return target;
            }
            function eachTypeRelatedToType(source, target, reportErrors, intersectionState) {
                var result = -1 /* Ternary.True */;
                var sourceTypes = source.types;