[io grant] Include exception used in IO::Path.resolve

Author: zoffixznet

doc/Type/IO/Path.pod6

@@ -383,7 +383,8 @@ for each directory in the path, and any symlinks found are followed.
     my $io = "foo/./bar/..".IO.resolve;      # now "/" (the parent of "/baz")
 
 If C<:$completely>, which defaults to C<False>, is set to a true value, the
-method will L«C<fail>|/routine/fail» if it cannot completely resolve the path,
+method will L«C<fail>|/routine/fail» with C<X::IO::Resolve>
+if it cannot completely resolve the path,
 otherwise, it will resolve as much as possible, and will merely perform
 L«C<cleanup>|/routine/cleanup» of the rest of the path. The last part of the
 path does B<NOT> have to exist to C<:$completely> resolve the path.