Ban exception specification in alias-declarations

Clause / Subclause / Annex: 
15.4
Para/Table/Figure: 
2
Comment type: 
Te
Comment / justification for change: 

Template aliases have the same semantics as a typedef so should also be disallowed

Recommended change: 

add “or alias-declaration” after “shall not appear in a typedef declaration”.

MB: 
UK