 infix operator   ^ : AdditionPrecedence, BinaryInteger
 
 // FIXME: is this the right precedence level for "..." ?
-infix operator  ... : RangeFormationPrecedence
-infix operator  ..< : RangeFormationPrecedence
+infix operator  ... : RangeFormationPrecedence, Comparable
+infix operator  ..< : RangeFormationPrecedence, Comparable
 
 // The cast operators 'as' and 'is' are hardcoded as if they had the
 // following attributes:


// "Conjunctive"

infix operator && : LogicalConjunctionPrecedence

// "Disjunctive"

infix operator || : LogicalDisjunctionPrecedence

// User-defined ternary operators are not supported. The ? : operator is
// hardcoded as if it had the following attributes:

// Standard postfix operators.
postfix operator ++
postfix operator --
postfix operator ... : Comparable

// Optional<T> unwrapping operator is built into the compiler as a part of
// postfix expression grammar.
