Re: Implement -Wimplicit-fallthrough (version 9)

[Jason Merrill]

On 09/20/2016 11:33 AM, Marek Polacek wrote:
@@ -5135,6 +5135,30 @@ cp_parser_primary_expression (cp_parser *parser,
        case RID_AT_SELECTOR:
          return cp_parser_objc_expression (parser);
+       case RID_ATTRIBUTE:

Attribute handling doesn't belong in this function; we don't want to 
allow attributes anywhere we see a primary-expression.  This should be 
either in cp_parser_expression_statement or cp_parser_statement.

Jason