On 1/19/21 11:29 AM, Patrick Palka wrote:
Here, during partial instantiation of the generic lambda, tsubst_copy on
the CLASS_PLACEHOLDER_TEMPLATE of the CTAD placeholder U{0} yields a
(level-lowered) TEMPLATE_TEMPLATE_PARM rather than the corresponding
TEMPLATE_DECL. This later confuses do_class
Here, during partial instantiation of the generic lambda, tsubst_copy on
the CLASS_PLACEHOLDER_TEMPLATE of the CTAD placeholder U{0} yields a
(level-lowered) TEMPLATE_TEMPLATE_PARM rather than the corresponding
TEMPLATE_DECL. This later confuses do_class_deduction which expects
that the CLASS_PLAC
