Compile time function execution...

[Walter Bright]

Max Samukha wrote:
> The following must be a related bug. The compiler complains that the
> argument to the mixin is not a string and parse() cannot be evaliated
> at compile-time.

Yes, in the compiler source the mixin argument failed to be marked as 
"must interpret", so all these will fail. Fortunately, it's a trivial 
fix, and will go out in the next update.