Enabling Alchemy65 extension breaks intellisense for C files.

[mhughson]

It looks like the moment I enabled your extension, all the C files are changing to "text files" or something, rather than C files.

The following features stop working inside C files:

• Alt+O to toggle between header and source files
• Ctrl+Shoft+O to go to functions.
• F12 to go to definition of a symbol
• etc