--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/Rewriter/rewrite-block-consts.mm	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -x objective-c++ -Wno-return-type -fblocks -fms-extensions -rewrite-objc -fobjc-runtime=macosx-fragile-10.5 %s -o %t-rw.cpp
+// RUN: %clang_cc1 -fsyntax-only -Wno-address-of-temporary -D__block="" -D"SEL=void*" -D"__declspec(X)=" %t-rw.cpp
+// rdar:// 8243071
+
+void x(int y) {}
+void f() {
+    const int bar = 3;
+    int baz = 4;
+    __block int bab = 4;
+    __block const int bas = 5;
+    void (^b)() = ^{
+        x(bar);
+        x(baz);
+	x(bab);
+	x(bas);
+	b();
+    };    
+    b();
+}