Function nodeIsPresent

test/fixtures/snapshot/typescript.js:14617–14619

(node)

    }
    ts.nodeIsMissing = nodeIsMissing;
    function nodeIsPresent(node) {
        return !nodeIsMissing(node);
    }
    ts.nodeIsPresent = nodeIsPresent;
    function insertStatementsAfterPrologue(to, from, isPrologueDirective) {
        if (from === undefined || from.length === 0)