Diagnostic for use of plain protocol name in type position should suggest some or any #68284
Description
The following code is invalid:
protocol P {
associatedtype A
}
func generic(value: P) {}The compiler currently produces the error message Use of protocol 'P' as a type must be written 'any P' with a fix-it to insert the any keyword.
However, a different (and often better!) fix here is to use the some keyword. The error message should be re-worded to prompt the programmer to consider any or some, and there should be two notes, each with a fix-it to insert any or some, respectively.