message: vhdl lexer: fix missing "fragment" for EXPONENT
diff: @@ -188,7 +188,7 @@ EXTENDED_IDENTIFIER:
  ;
  DECIMAL_LITERAL: INTEGER ( DOT INTEGER )? ( EXPONENT )?;
  INTEGER: DIGIT ( ( UNDERSCORE )? DIGIT )*;
  -EXPONENT: E ( PLUS )? INTEGER | E MINUS INTEGER;
  +fragment EXPONENT: E ( PLUS )? INTEGER | E MINUS INTEGER;
  fragment BASE: INTEGER;
  fragment BASED_INTEGER:
  EXTENDED_DIGIT ( ( UNDERSCORE )? EXTENDED_DIGIT )*
  