fabb9dbf18
We might have needed it in the past, but now 'new FunctionTypeImpl(element)' does not use the enclosing element, at least until we start calling its methods, which happens after we finish building the element model. R=paulberry@google.com, brianwilkerson@google.com BUG= Review URL: https://codereview.chromium.org/2422333002 .