Typemaker2 improvements.
Typemaker2 improvements.

Only generate _dup() and _copy() functions if the flags "NODUP" and
"NOCOPY" are not set on the type.

This is needed for generated types which are not dup-able or copyable.

git-svn-id: a739a095880fa3ebc46f89d9df64e20166cf4ba9@2213 70169cfe-8b10-0410-8925-dcb4b91034d8

sttts/gwenhywfar,sttts/gwenhywfar,sttts/gwenhywfar