https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61321
--- Comment #1 from Pedro Alves <palves at redhat dot com> ---
I think we need to distinguish conversion operators from expression casts.
Working on a patch that adds:
--- c/include/demangle.h
+++ w/include/demangle.h
@@ -373,6 +373,10 @@ enum demangle_component_type
/* A typecast, represented as a unary operator. The one subtree is
the type to which the argument should be cast. */
DEMANGLE_COMPONENT_CAST,
+ /* A conversion operator, represented as a unary operator. The one
+ subtree is the type to which the argument should be converted
+ to. */
+ DEMANGLE_COMPONENT_CONVERSION,
