[embedded] Add a test for using AnyObject explicitly

Author: kubamracek

test/embedded/existential-class-bound6.swift

@@ -0,0 +1,34 @@
+// RUN: %target-run-simple-swift(-enable-experimental-feature Embedded -parse-as-library -wmo) | %FileCheck %s
+// RUN: %target-run-simple-swift(-enable-experimental-feature Embedded -parse-as-library -wmo -O) | %FileCheck %s
+// RUN: %target-run-simple-swift(-enable-experimental-feature Embedded -parse-as-library -wmo -Osize) | %FileCheck %s
+
+// REQUIRES: swift_in_compiler
+// REQUIRES: executable_test
+// REQUIRES: optimized_stdlib
+// REQUIRES: OS=macosx || OS=linux-gnu
+
+public var global: AnyObject? = nil
+
+func test(anyObject: AnyObject) {
+    global = anyObject
+}
+
+class MyClass {}
+class MyOtherClass {}
+protocol MyProto: AnyObject {}
+extension MyClass: MyProto {}
+extension MyOtherClass: MyProto {}
+
+@main
+struct Main {
+    static func main() {
+        test(anyObject: MyClass())
+        test(anyObject: MyOtherClass())
+        test(anyObject: MyClass() as AnyObject)
+        test(anyObject: MyOtherClass() as AnyObject)
+        test(anyObject: MyClass() as MyProto)
+        test(anyObject: MyOtherClass() as MyProto)
+        print("OK!")
+        // CHECK: OK!
+    }
+}