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Here, we weren't recognizing that the template parameter of A is used by the reference to d in the requires-clause of f. Fixed by passing down the active template parameters in the context of normalization, and adding to the mapping any such parameters shared by a member template used in the constraint-expression. * pt.c (struct find_template_parameter_info): Add ctx_parms. (any_template_parm_r): Handle TEMPLATE_DECL. (find_template_parameters): Take parms instead of their depth. * constraint.cc (build_parameter_mapping): Pass them.
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