Function setParent

test/fixtures/snapshot/typescript.js:21195–21200

(child, parent)

    }
    ts.setNodeFlags = setNodeFlags;
    function setParent(child, parent) {
        if (child && parent) {
            child.parent = parent;
        }
        return child;
    }
    ts.setParent = setParent;
    function setEachParent(children, parent) {
        if (children) {