TS Server fatal error: Cannot read property 'indexOf' of undefined

[nitpum]

Issue Type: Bug

❗️❗️❗️ Please fill in the sections below to help us diagnose the issue ❗️❗️❗️

TypeScript Version: 4.1.4

Steps to reproduce crash

1. Open VSCode
2. Open typescript file on WSL2

TS Server Log
❗️ Please review and upload this log file to help us diagnose this crash:
/home/nitpum/.vscode-server/data/logs/20210211T153455/exthost3/vscode.typescript-language-features/tsserver-log-MDCurO/tsserver.log
The log file may contain personal data, including full paths and source code from your workspace. You can scrub the log file to remove paths or other personal information.

TS Server Error Stack
Server: semantic

TypeError: Cannot read property 'indexOf' of undefined
    at Object.parsePackageName (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:39472:30)
    at ConfiguredProject.Project.enablePlugin (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:151962:24)
    at ConfiguredProject.enablePluginsWithOptions (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:152477:30)
    at ProjectService.loadConfiguredProject (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:154206:25)
    at ProjectService.createAndLoadConfiguredProject (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:154145:22)
    at ProjectService.createLoadAndUpdateConfiguredProject (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:154150:36)
    at ProjectService.assignProjectToOpenedScriptInfo (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:155055:44)
    at /home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:155395:97
    at Object.flatMap (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:513:25)
    at ProjectService.applyChangesInOpenFiles (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:155395:41)
    at Session.handlers.ts.Map.ts.getEntries._a.<computed> (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:156413:46)
    at /home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:158286:88
    at IOSession.Session.executeWithRequestId (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:158277:28)
    at IOSession.Session.executeCommand (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:158286:33)
    at IOSession.Session.onMessage (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:158310:35)
    at Interface.<anonymous> (/home/nitpum/.vscode-server/bin/5d424b828ada08e1eb9f95d6cb41120234ef57c7/extensions/node_modules/typescript/lib/tsserver.js:160520:27)
    at Interface.emit (events.js:315:20)
    at Interface._onLine (readline.js:329:10)
    at Interface._normalWrite (readline.js:474:12)
    at Socket.ondata (readline.js:186:10)
    at Socket.emit (events.js:315:20)
    at addChunk (_stream_readable.js:295:12)
    at readableAddChunk (_stream_readable.js:271:9)
    at Socket.Readable.push (_stream_readable.js:212:10)
    at Pipe.onStreamRead (internal/stream_base_commons.js:186:23)

VS Code version: Code 1.53.1 (5d424b8, 2021-02-08T23:29:42.785Z)
OS version: Windows_NT x64 10.0.19042
Remote OS version: Linux x64 4.19.104-microsoft-standard

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz (12 x 2208)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on protected_video_decode: enabled rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	31.80GB (18.80GB free)
Process Argv	--crash-reporter-id 9fa0e17a-849f-41f9-962c-bbd2fdf8ed40
Screen Reader	no
VM	0%

Item	Value
Remote	WSL: Ubuntu-20.04
OS	Linux x64 4.19.104-microsoft-standard
CPUs	Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz (12 x 2208)
Memory (System)	24.90GB (23.03GB free)
VM	0%

Extensions (23)

Extension	Author (truncated)	Version
emojisense	bie	0.8.0
bracket-pair-colorizer-2	Coe	0.2.0
auto-rename-tag	for	0.1.6
vue-snippets	hol	1.0.4
vscode-peacock	joh	3.9.1
dotenv	mik	1.0.1
vscode-edge-devtools	ms-	1.1.3
remote-containers	ms-	0.158.0
remote-ssh	ms-	0.63.0
remote-ssh-edit	ms-	0.63.0
remote-wsl	ms-	0.53.4
vscode-remote-extensionpack	ms-	0.20.0
debugger-for-edge	msj	1.0.15
biblatex-snippets	nik	1.0.5
proto	pet	0.0.2
material-icon-theme	PKi	4.5.0
code-settings-sync	Sha	3.4.3
gitconfig	sid	2.0.1
swdc-vscode	sof	2.4.7
errorlens	use	3.2.4
highlight-matching-tag	vin	0.10.0
gistfs	vsl	0.2.2
mono-snippets	zra	0.0.2

(4 theme extensions excluded)

A/B Experiments

vsliv368cf:30146710
vsreu685:30147344
python383cf:30185419
vspyt653:30253241
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492cf:30211402
pythonvsdeb440:30248342
pythonvsded773:30248341
pythonvspyt600cf:30251589

[nitpum]

Same as #116425

[IllusionMH]

/duplicate of #116219
Fix should go out with VS Code 1.53.2