Check delegating constructors for using uninitialized fields.

llvm-svn: 217716
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 858f2c7..006a3c4 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -3623,6 +3623,8 @@
 
   DelegatingCtorDecls.push_back(Constructor);
 
+  DiagnoseUninitializedFields(*this, Constructor);
+
   return false;
 }