Sema: 'Any' can bridge to a class, so throws -> Any is allowed.

Author: jckarter

lib/Sema/TypeCheckType.cpp

@@ -2744,6 +2744,10 @@ static bool isBridgedToObjectiveCClass(DeclContext *dc, Type type) {
   // Simple case: bridgeable object types.
   if (type->isBridgeableObjectType())
     return true;
+  
+  // Any bridges to AnyObject.
+  if (type->isAny())
+    return true;
 
   // Determine whether this type is bridged to Objective-C.
   ASTContext &ctx = type->getASTContext();

test/attr/attr_objc_any.swift

@@ -13,4 +13,8 @@ class Foo: NSObject {
   @objc func method(x: Any) -> Any { return x }
 
   @objc func indirectAny(x: UnsafePointer<Any>) {} // expected-error{{type of the parameter cannot be represented in Objective-C}}
+
+  @objc func throwingMethod(x: Any) throws -> Any { return x }
+
+  @objc func throwingMethod(x: Any) throws -> Any? { return x } // expected-error{{throwing method cannot be marked @objc because it returns a value of optional type 'Any?'; 'nil' indicates failure to Objective-C}}
 }