[PATCH] c++: Add co_await, co_yield and co_return to dump_expr.

[Iain Sandoe]

Tested on x86_64-darwin, OK for trunk?
thanks
Iain

--- 8< ---

These were omitted there as an oversight, most of the error handling
for the coroutines code is specific rather than using generic %qE etc.

gcc/cp/ChangeLog:

        * error.cc (dump_expr): Add co_await, co_yield and co_return.

Signed-off-by: Iain Sandoe <i...@sandoe.co.uk>
---
 gcc/cp/error.cc | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/gcc/cp/error.cc b/gcc/cp/error.cc
index a6a4a8c6212..f14d823a9fc 100644
--- a/gcc/cp/error.cc
+++ b/gcc/cp/error.cc
@@ -3244,6 +3244,27 @@ dump_expr (cxx_pretty_printer *pp, tree t, int flags)
        break;
       }
 
+    case CO_AWAIT_EXPR:
+      pp_cxx_ws_string (pp, "co_await");
+      pp_cxx_whitespace (pp);
+      dump_expr (pp, TREE_OPERAND (t, 0), flags);
+      break;
+
+    case CO_YIELD_EXPR:
+      pp_cxx_ws_string (pp, "co_yield");
+      pp_cxx_whitespace (pp);
+      dump_expr (pp, TREE_OPERAND (t, 0), flags);
+      break;
+
+    case CO_RETURN_EXPR:
+      pp_cxx_ws_string (pp, "co_return");
+      if (TREE_OPERAND (t, 0))
+       {
+         pp_cxx_whitespace (pp);
+         dump_expr (pp, TREE_OPERAND (t, 0), flags);
+       }
+      break;
+
       /*  This list is incomplete, but should suffice for now.
          It is very important that `sorry' does not call
          `report_error_function'.  That could cause an infinite loop.  */
-- 
2.39.2 (Apple Git-143)