Highlighting Incorrect After Shimming Ostream Operator

[marek-travnikar]

Checklist

• This problem exists even with the setting "C_Cpp.enhancedColorization": "Disabled"

If Disabling that^ makes the problem go away, then follow this to make an issue on the C++ extension:
https://github.com/microsoft/vscode-cpptools/issues/new/choose

The code with a problem is:

Version 1.17.2
After shimming an ostream operator anywhere in a C++ file, the syntax highlighting becomes incorrect after that point.

It looks like:

With Default Dark+:

It should look like:

After manually tweaking some regex for template_call_range from "end": ">", -> "end": ">|;",