Tabs in YAML comment cause syntax highlighting to not work

[rcjsuen]

Issue Type: Bug

Tabs prevent comments from being highlighted correctly in YAML.

redis:
  # good comment
  enabled: true
  # 	bad comment
  image:
    pullPolicy: IfNotPresent

VS Code version: Code 1.53.2 (622cb03, 2021-02-11T11:45:54.515Z)
OS version: Darwin x64 19.6.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz (16 x 2400)
GPU Status	2d_canvas: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	5, 6, 6
Memory (System)	32.00GB (2.57GB free)
Process Argv	. --crash-reporter-id 87f5170f-46d6-4287-a618-c0e8a137aff7
Screen Reader	no
VM	0%

Extensions (3)

Extension	Author (truncated)	Version
gitlens	eam	11.2.1
go	gol	0.22.1
vscode-docker	ms-	1.10.0

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383cf:30185419
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492:30256859
vstry914:30256638
pythonvsdeb440:30248342
pythonvsded773:30248341
pythonvspyt875:30259475
pythontb:30260843

[alexr00]

Since we get our yaml syntax highlighting grammar from another repo, I have opened an issue there: textmate/yaml.tmbundle#36