--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/Parser/objc-foreach-syntax.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
+
+struct __objcFastEnumerationState; 
+@implementation MyList // expected-warning {{cannot find interface declaration for 'MyList'}}
+- (unsigned int)countByEnumeratingWithState:  (struct __objcFastEnumerationState *)state objects:  (id *)items count:(unsigned int)stackcount
+{
+     return 0;
+}
+@end
+
+
+int LOOP();
+
+@implementation MyList (BasicTest) 
+- (void)compilerTestAgainst {
+MyList * el; 
+     for (el in @"foo") 
+	  { LOOP(); }
+}
+@end
+
+
+static int test7(id keys) {
+  for (id key; in keys) ;  // expected-error {{use of undeclared identifier 'in'}}
+}