[Issue 19785] top level const types in function parameters should not mangle as const

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19785

Walter Bright <bugzilla at digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|const basic types in        |top level const types in
                   |function parameters should  |function parameters should
                   |not mangle as const         |not mangle as const

--