Add EnumItem HIR lowering

Make HIT EnumItem class an Item, not VisItem like in the AST. At the
HIR level EnumItems shouldn't have visibility anymore.

Move struct_field_name_exists to rust-ast-lower.cc with the
declaration in rust-ast-lower.h to make it reusable in the different
visitors.

Add a new ASTLoweringEnumItem that can be used from ASTLoweringItem
and ASTLoweringStmt. It checks the EnumItems don't have visibility and
that EnumItemStruct fields are not duplicated.

Add a new testcase 'bad_pub_enumitems.rs' to check the no-visibility and
no-duplicates properties hold.

0 files changed, 0 insertions, 0 deletions