Fix Issue 10931 - etc.c.zlib is missing proper const annotations for parameters and uses C-style pointer declarations.
add @nogc annotations to std.path
add @nogc annotations to std.ascii
Merge pull request #2143 from WalterBright/nogc-ascii

add @nogc annotations to std.ascii
Merge pull request #2142 from WalterBright/nogc-path

add @nogc annotations to std.path
Merge pull request #2123 from AndrejMitrovic/Fix10931

Issue 10931 - etc.c.zlib is missing proper const annotations for parameters and uses C-style pointers