Javascript: Single line comment followed by multi-line comment, has incorrect syntax highlighting on multi-line comment

[mjbvz]

From @DannyJJK on May 23, 2017 9:7

• VSCode Version: Code 1.12.2 (19222cdc84ce72202478ba1cec5cb557b71163de, 2017-05-10T13:13:11.413Z)
• OS Version: Darwin x64 16.7.0
• Extensions:

Extension	Author	Version
output-colorizer	IBM	0.1.1
material-icon-theme	PKief	2.0.6
vscode-theme-onedark	akamud	1.3.2
monokai-plusplus	dcasella	1.6.0
githistory	donjayamanne	0.2.0
theme-dracula	dracula-theme	1.17.0
php-intellisense	felixfbecker	1.2.2
ftp-sync	lukasz-wronski	0.3.3
typescript-javascript-grammar	ms-vscode	0.0.20
language-stylus	sysoev	1.7.3
twig	whatwedo	1.0.2
Material-theme	zhuangtongfa	2.8.0

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Steps to Reproduce:

1. Create a new JavaScript document
2. Enter a single line comment using // and some text, then on any new line below without entering any other text, create a multi-line comment using /* and */

The expected result is that the syntax highlighting shows that they're both comments by placing them both in one color, however the actual result is that the second (multi-line) comment is not treated as a comment by the syntax highlighting. Placing text between the two comments fixes the issue

Copied from original issue: microsoft/vscode#27122

[mjbvz]

This seems to have been introduced with 0.2.0 of the TS Grammar extension