Causes typescript formatter to hang

[glen-smudge]

Issue Type: Bug

Saving a typescript file, VS code shows:

Saving 'index.tsx': Running 'TypeScript and JavaScript Language Features' Formatter (configure).

and stops compiling.

Extension version: 1.20.0
VS Code version: Code 1.60.1 (83bd43bc519d15e50c4272c6cf5c1479df196a4d, 2021-09-10T17:09:14.403Z)
OS version: Darwin x64 20.5.0
Restricted Mode: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz (12 x 2600)
GPU Status	2d_canvas: unavailable_software gpu_compositing: disabled_software metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: disabled_off opengl: disabled_off rasterization: disabled_software skia_renderer: disabled_off_ok video_decode: disabled_software webgl: unavailable_software webgl2: unavailable_software
Load (avg)	9, 7, 6
Memory (System)	32.00GB (0.89GB free)
Process Argv	--crash-reporter-id 7fc01d93-8d66-4f3b-8a3f-24f862e041d6
Screen Reader	no
VM	0%

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