Rollup merge of #117175 - oli-obk:gen_fn_split, r=compiler-errors

Rename AsyncCoroutineKind to CoroutineSource

pulled out of https://github.com/rust-lang/rust/pull/116447

Also refactors the printing infra of `CoroutineSource` to be ready for easily extending it with a `Gen` variant for `gen` blocks

clippy_lints/src/async_yields_async.rs

@@ -2,7 +2,7 @@ use clippy_utils::diagnostics::span_lint_hir_and_then;
 use clippy_utils::source::snippet;
 use clippy_utils::ty::implements_trait;
 use rustc_errors::Applicability;
-use rustc_hir::{AsyncCoroutineKind, Body, BodyId, CoroutineKind, ExprKind, QPath};
+use rustc_hir::{CoroutineSource, Body, BodyId, CoroutineKind, ExprKind, QPath};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
@@ -45,7 +45,7 @@ declare_lint_pass!(AsyncYieldsAsync => [ASYNC_YIELDS_ASYNC]);
 
 impl<'tcx> LateLintPass<'tcx> for AsyncYieldsAsync {
     fn check_body(&mut self, cx: &LateContext<'tcx>, body: &'tcx Body<'_>) {
-        use AsyncCoroutineKind::{Block, Closure};
+        use CoroutineSource::{Block, Closure};
         // For functions, with explicitly defined types, don't warn.
         // XXXkhuey maybe we should?
         if let Some(CoroutineKind::Async(Block | Closure)) = body.coroutine_kind {

clippy_lints/src/await_holding_invalid.rs

@@ -2,7 +2,7 @@ use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::{match_def_path, paths};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def_id::DefId;
-use rustc_hir::{AsyncCoroutineKind, Body, CoroutineKind};
+use rustc_hir::{CoroutineSource, Body, CoroutineKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::mir::CoroutineLayout;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
@@ -195,7 +195,7 @@ impl LateLintPass<'_> for AwaitHolding {
     }
 
     fn check_body(&mut self, cx: &LateContext<'_>, body: &'_ Body<'_>) {
-        use AsyncCoroutineKind::{Block, Closure, Fn};
+        use CoroutineSource::{Block, Closure, Fn};
         if let Some(CoroutineKind::Async(Block | Closure | Fn)) = body.coroutine_kind {
             let def_id = cx.tcx.hir().body_owner_def_id(body.id());
             if let Some(coroutine_layout) = cx.tcx.mir_coroutine_witnesses(def_id) {

clippy_lints/src/manual_async_fn.rs

@@ -4,7 +4,7 @@ use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir::intravisit::FnKind;
 use rustc_hir::{
-    AsyncCoroutineKind, Block, Body, Closure, CoroutineKind, Expr, ExprKind, FnDecl, FnRetTy, GenericArg, GenericBound,
+    CoroutineSource, Block, Body, Closure, CoroutineKind, Expr, ExprKind, FnDecl, FnRetTy, GenericArg, GenericBound,
     ImplItem, Item, ItemKind, LifetimeName, Node, Term, TraitRef, Ty, TyKind, TypeBindingKind,
 };
 use rustc_lint::{LateContext, LateLintPass};
@@ -188,7 +188,7 @@ fn desugared_async_block<'tcx>(cx: &LateContext<'tcx>, block: &'tcx Block<'tcx>)
             ..
         } = block_expr;
         let closure_body = cx.tcx.hir().body(body);
-        if closure_body.coroutine_kind == Some(CoroutineKind::Async(AsyncCoroutineKind::Block));
+        if closure_body.coroutine_kind == Some(CoroutineKind::Async(CoroutineSource::Block));
         then {
             return Some(closure_body);
         }

clippy_lints/src/needless_question_mark.rs

@@ -4,7 +4,7 @@ use clippy_utils::source::snippet;
 use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
-use rustc_hir::{AsyncCoroutineKind, Block, Body, CoroutineKind, Expr, ExprKind, LangItem, MatchSource, QPath};
+use rustc_hir::{CoroutineSource, Block, Body, CoroutineKind, Expr, ExprKind, LangItem, MatchSource, QPath};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
@@ -87,7 +87,7 @@ impl LateLintPass<'_> for NeedlessQuestionMark {
     }
 
     fn check_body(&mut self, cx: &LateContext<'_>, body: &'_ Body<'_>) {
-        if let Some(CoroutineKind::Async(AsyncCoroutineKind::Fn)) = body.coroutine_kind {
+        if let Some(CoroutineKind::Async(CoroutineSource::Fn)) = body.coroutine_kind {
             if let ExprKind::Block(
                 Block {
                     expr:

clippy_lints/src/redundant_async_block.rs

@@ -5,7 +5,7 @@ use clippy_utils::peel_blocks;
 use clippy_utils::source::{snippet, walk_span_to_context};
 use clippy_utils::visitors::for_each_expr;
 use rustc_errors::Applicability;
-use rustc_hir::{AsyncCoroutineKind, Closure, CoroutineKind, Expr, ExprKind, MatchSource};
+use rustc_hir::{CoroutineSource, Closure, CoroutineKind, Expr, ExprKind, MatchSource};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty::UpvarCapture;
@@ -71,7 +71,7 @@ impl<'tcx> LateLintPass<'tcx> for RedundantAsyncBlock {
 fn desugar_async_block<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) -> Option<&'tcx Expr<'tcx>> {
     if let ExprKind::Closure(Closure { body, def_id, .. }) = expr.kind &&
         let body = cx.tcx.hir().body(*body) &&
-        matches!(body.coroutine_kind, Some(CoroutineKind::Async(AsyncCoroutineKind::Block)))
+        matches!(body.coroutine_kind, Some(CoroutineKind::Async(CoroutineSource::Block)))
     {
         cx
             .typeck_results()