anchor.diff:      ;
   
   model_expression_element
  -    : (ANY | condition_wrapper) (',' (ANY | condition_wrapper))*
  +    : (ANY | expression) (',' (ANY | expression))*
       | single_column_for_loop (',' single_column_for_loop)*
       | multi_column_for_loop
       ;
  
positive.code:     ;
  
  simple_case_when_part
      : WHEN expression_wrapper THEN (/*TODO{$case_statement::isStatement}?*/ seq_of_statements | expression_wrapper)
      ;
  
  searched_case_statement
  
negative.code:     ;
  
  quantified_expression
      : (SOME | EXISTS | ALL | ANY) ('(' subquery ')' | '(' expression ')')
      ;
  
  standard_function
  