rust-analyzer guided enum variant structification

Author: oli-obk

clippy_lints/src/redundant_static_lifetimes.rs

@@ -1,7 +1,7 @@
 use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::snippet;
-use rustc_ast::ast::{Item, ItemKind, Ty, TyKind};
+use rustc_ast::ast::{Item, ItemKind, Ty, TyKind, Static};
 use rustc_errors::Applicability;
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
@@ -106,7 +106,7 @@ impl EarlyLintPass for RedundantStaticLifetimes {
                 // #2438)
             }
 
-            if let ItemKind::Static(ref var_type, _, _) = item.kind {
+            if let ItemKind::Static(Static(ref var_type, _, _)) = item.kind {
                 Self::visit_type(var_type, cx, "statics have by default a `'static` lifetime");
             }
         }

clippy_utils/src/ast_utils.rs

@@ -286,7 +286,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
     match (l, r) {
         (ExternCrate(l), ExternCrate(r)) => l == r,
         (Use(l), Use(r)) => eq_use_tree(l, r),
-        (Static(lt, lm, le), Static(rt, rm, re)) => lm == rm && eq_ty(lt, rt) && eq_expr_opt(le, re),
+        (Static(ast::Static(lt, lm, le)), Static(ast::Static(rt, rm, re))) => lm == rm && eq_ty(lt, rt) && eq_expr_opt(le, re),
         (Const(ld, lt, le), Const(rd, rt, re)) => eq_defaultness(*ld, *rd) && eq_ty(lt, rt) && eq_expr_opt(le, re),
         (
             Fn(box ast::Fn {