--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/Index/complete-objc-message-id.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,74 @@
+// Note: the run lines follow their respective tests, since line/column
+// matter in this test.
+
+@interface A
++ (id)alloc;
++ (id)init;
++ (id)new;
++ (Class)class;
++ (Class)superclass;
+- (id)retain;
+- (id)autorelease;
+- (id)superclass;
+@end
+
+@interface B : A
+- (int)B_method;
+@end
+
+@interface Unrelated
++ (id)icky;
+@end
+
+void message_id(B *b) {
+  [[A alloc] init];
+  [[b retain] B_method];
+  [[b superclass] B_method];
+}
+
+@implementation Unrelated
++ (id)alloc {
+  return [A alloc];
+}
+@end
+
+@protocol P1
+- (int)P1_method1;
++ (int)P1_method2;
+@end
+
+@protocol P2 <P1>
+- (int)P2_method1;
++ (int)P2_method2;
+@end
+
+void message_qualified_id(id<P2> ip2) {
+  [ip2 P1_method];
+   ip2 P1_method];
+}
+
+// RUN: c-index-test -code-completion-at=%s:24:14 %s | FileCheck -check-prefix=CHECK-CC1 %s
+// CHECK-CC1: ObjCInstanceMethodDecl:{ResultType id}{TypedText autorelease}
+// CHECK-CC1-NOT: B_method
+// CHECK-CC1: ObjCInstanceMethodDecl:{ResultType id}{TypedText retain}
+// RUN: c-index-test -code-completion-at=%s:25:15 %s | FileCheck -check-prefix=CHECK-CC2 %s
+// CHECK-CC2: ObjCInstanceMethodDecl:{ResultType id}{TypedText autorelease}
+// CHECK-CC2: ObjCInstanceMethodDecl:{ResultType int}{TypedText B_method}
+// CHECK-CC2: ObjCInstanceMethodDecl:{ResultType id}{TypedText retain}
+// RUN: c-index-test -code-completion-at=%s:26:19 %s | FileCheck -check-prefix=CHECK-CC3 %s
+// CHECK-CC3: ObjCInstanceMethodDecl:{ResultType id}{TypedText autorelease}
+// CHECK-CC3-NOT: B_method
+// CHECK-CC3: ObjCInstanceMethodDecl:{ResultType id}{TypedText retain}
+
+
+// RUN: c-index-test -code-completion-at=%s:31:13 %s | FileCheck -check-prefix=CHECK-SELECTOR-PREF %s
+// CHECK-SELECTOR-PREF: ObjCClassMethodDecl:{ResultType id}{TypedText alloc} (32)
+// CHECK-SELECTOR-PREF: ObjCClassMethodDecl:{ResultType Class}{TypedText class} (35)
+// CHECK-SELECTOR-PREF: ObjCClassMethodDecl:{ResultType id}{TypedText init} (35)
+// CHECK-SELECTOR-PREF: ObjCClassMethodDecl:{ResultType id}{TypedText new} (35)
+// CHECK-SELECTOR-PREF: ObjCClassMethodDecl:{ResultType Class}{TypedText superclass} (35)
+
+// RUN: c-index-test -code-completion-at=%s:46:8 %s | FileCheck -check-prefix=CHECK-INSTANCE-QUAL-ID %s
+// RUN: c-index-test -code-completion-at=%s:47:8 %s | FileCheck -check-prefix=CHECK-INSTANCE-QUAL-ID %s
+// CHECK-INSTANCE-QUAL-ID: ObjCInstanceMethodDecl:{ResultType int}{TypedText P1_method1} (37)
+// CHECK-INSTANCE-QUAL-ID: ObjCInstanceMethodDecl:{ResultType int}{TypedText P2_method1} (35)