Keen Yee Liau 5f76de1d71 test(language-service): Fix diagnostic tests (#32161)
This commit fixes many diagnostic tests have have incorrect/uncaught assertions.
Also added more assertions to make sure TS diagnostics are clear.
A few test util methods are removed to reduce clutter and improve readability.

PR Close #32161
2019-08-16 15:26:05 -07:00
..