文件改名后，编辑窗口文件名未同步，并且一直报错

[tjHong]

Issue Type: Bug

1.在左侧文件夹内新建文件version.Vue，并在右侧打开文件。
2.更改左侧边栏文件名字为Version.vue保存
3.右侧编辑区窗口文件名字仍是version.Vue，并且文件内部提示语法错误

VS Code version: Code 1.46.1 (cd9ea64, 2020-06-17T21:17:14.222Z)
OS version: Darwin x64 19.4.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-7267U CPU @ 3.10GHz (4 x 3100)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off_ok webgl: enabled webgl2: enabled
Load (avg)	2, 2, 2
Memory (System)	8.00GB (0.06GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (8)

Extension	Author (truncated)	Version
beautify	Hoo	1.5.0
vscode-language-babel	mgm	0.0.27
vscode-docker	ms-	1.3.1
vscode-language-pack-zh-hans	MS-	1.46.3
debugger-for-chrome	msj	4.12.8
vetur	oct	0.24.0
LiveServer	rit	5.6.1
js-jsx-snippets	sky	10.1.0

[yume-chan]

Duplicate of #100436