Merge pull request #32477 from slavapestov/regression-test-sr1329

Add regression test for https://bugs.swift.org/browse/SR-1329

Author: slavapestov

validation-test/compiler_crashers_2_fixed/sr1329.swift

@@ -0,0 +1,16 @@
+// RUN: %target-swift-frontend -emit-ir %s -disable-objc-attr-requires-foundation-module
+// REQUIRES: objc_interop
+
+@objc protocol TestProtocol {
+    func foo(i: Int)
+}
+
+class Test : TestProtocol {
+    @objc func foo(i: Int) {
+    }
+}
+
+func bar(t: TestProtocol?) {
+    let foofunc = t?.foo
+    foofunc?(5)
+}