Fixed issue where streams would not be tracked via chainable methods

javascript/ql/test/query-tests/Quality/UnhandledStreamPipe/test.expected

@@ -8,7 +8,6 @@
 | test.js:109:26:109:37 | s.pipe(dest) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:116:5:116:21 | stream.pipe(dest) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:125:5:125:26 | getStre ... e(dest) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
-| test.js:139:5:139:87 | stream. ... itable) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:143:5:143:62 | stream. ... itable) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:147:5:147:28 | notStre ... itable) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:151:20:151:43 | notStre ... itable) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |

javascript/ql/test/query-tests/Quality/UnhandledStreamPipe/test.js

@@ -136,7 +136,7 @@ function test() {
   }
   { // Long chained pipe with error handler
     const stream = getStream();
-    stream.pause().on('error', handleError).setEncoding('utf8').resume().pipe(writable); // $SPURIOUS:Alert
+    stream.pause().on('error', handleError).setEncoding('utf8').resume().pipe(writable);
   }
   { // Long chained pipe without error handler
     const stream = getStream();