With multiple languages in a single file, comment type is static

[mersenne-twister]

When you have multiple languages in a single file, comment type doesn't change.

Example:

In an html file, ^C will make a block comment using <!-- and -->.
However, in a <Script> tag, the correct comment type is //, but ^C still results in an html comment.

Suggested Enhancement:

Make comments dependent on context.

[the-mikedavis]

Duplicate of #7364