More complicated as? test.

Author: gregomni

test/Constraints/bridging.swift

@@ -298,6 +298,12 @@ func rdar20029786(_ ns: NSString?) {
   var s5: String = (ns ?? "str") as String // fixed version
 }
 
+// Make sure more complicated cast has correct parenthesization
+func castMoreComplicated(anInt: Int?) {
+  let _: (NSObject & NSCopying)? = anInt // expected-error{{cannot convert value of type 'Int?' to specified type '(NSObject & NSCopying)?'}}{{41-41= as (NSObject & NSCopying)?}}
+}
+
+
 // <rdar://problem/19813772> QoI: Using as! instead of as in this case produces really bad diagnostic
 func rdar19813772(_ nsma: NSMutableArray) {
   var a1 = nsma as! Array // expected-error{{generic parameter 'Element' could not be inferred in cast to 'Array'}} expected-note {{explicitly specify the generic arguments to fix this issue}} {{26-26=<Any>}}