Syntax highlight error in js code

[ihgsm]

• VSCode Version: 1.5.2
• OS Version: Win10

Steps to Reproduce:

1. In any existing JavaScript code type this: (n<<t ). Make sure there is a space after the t.
2. Check the syntax highlighting of the rest of the code, all the text that supposed to be white are now in dark grey. (using Dark+ color theme)

[chrmarti]

[staralfurbe]

I've a very similar issue, i assume the root cause is the same.

In js code within a php file, "<" followed by any character will cause the same color problem for the rest of file.

[aeschli]

This issue was moved to microsoft/TypeScript-TmLanguage#298