Razor syntax highlighting does not recognize @code or @functions

monaco-editor version: 0.2.0
Browser: Tested on Chromium and Firefox
OS: Ubuntu 19.10

When the language is set to razor, @code or @functions is not recognized and shows up (along with all the C# code inside of it) in the default text color. This can be reproduced by going to the Monaco Editor homepage, setting the language to razor, and entering this code:

@{
    @* This C# code will have syntax highlighting *@
    var test = "testing";
    if (true)
    {
        Console.WriteLine("testing");
    }
}
@code {
    @* This C# code will not have syntax highlighting *@
    var test = "testing";
    if (true)
    {
        Console.WriteLine("testing");
    }
}
@functions {
    @* This C# code will also not have syntax highlighting *@
    var test = "testing";
    if (true)
    {
        Console.WriteLine("testing");
    }
}

Reproduce the issue on the Monaco Editor homepage with the provided Razor snippet and the language set to razor. Trace the syntax-highlighting entry point for Razor; done means @code and @functions blocks, including their C# contents, receive syntax highlighting like the existing block.