Member predicate C11GenericExpr::getAssociationExpr

Gets the expression of the nth element in the association list of the generic selection.

For example, for

_Generic(e, int: "a", default: "b")

the expression for 0th element is "a", and the expression for the 1st element is "b". For the selected expression, this predicate will yield a ReuseExpr, such that

this.getAssociationExpr(n).(ReuseExpr).getReusedExpr() = this.getExpr()