Add compat/extension warnings for init captures.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191609 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaLambda.cpp b/lib/Sema/SemaLambda.cpp
index a87c903..fa46a28 100644
--- a/lib/Sema/SemaLambda.cpp
+++ b/lib/Sema/SemaLambda.cpp
@@ -703,6 +703,10 @@
 
     VarDecl *Var;
     if (C->Init.isUsable()) {
+      Diag(C->Loc, getLangOpts().CPlusPlus1y
+                       ? diag::warn_cxx11_compat_init_capture
+                       : diag::ext_init_capture);
+
       if (C->Init.get()->containsUnexpandedParameterPack())
         ContainsUnexpandedParameterPack = true;