Fixed another queryAst test

There were 2 problems:
 - Test was looking for the old style of `line` call to choose an offset
   for pathToNode
 - Test assumed that the `tag` param was always the third one, but in
   a kwarg call, you have to look it up by label

src/lang/queryAst.test.ts

@@ -443,7 +443,7 @@ describe('Testing findUsesOfTagInPipe', () => {
   it('finds the current segment', async () => {
     const ast = assertParse(exampleCode)
 
-    const lineOfInterest = `198.85], %, $seg01`
+    const lineOfInterest = `198.85], tag = $seg01`
     const characterIndex =
       exampleCode.indexOf(lineOfInterest) + lineOfInterest.length
     const pathToNode = getNodePathFromSourceRange(