C++1y: Allow aggregates to have default initializers.

Add a CXXDefaultInitExpr, analogous to CXXDefaultArgExpr, and use it both in
CXXCtorInitializers and in InitListExprs to represent a default initializer.

There's an additional complication here: because the default initializer can
refer to the initialized object via its 'this' pointer, we need to make sure
that 'this' points to the right thing within the evaluation.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179958 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXCursor.cpp b/tools/libclang/CXCursor.cpp
index edcc85b..e490b5d 100644
--- a/tools/libclang/CXCursor.cpp
+++ b/tools/libclang/CXCursor.cpp
@@ -215,6 +215,7 @@
   case Stmt::TypeTraitExprClass:
   case Stmt::CXXBindTemporaryExprClass:
   case Stmt::CXXDefaultArgExprClass:
+  case Stmt::CXXDefaultInitExprClass:
   case Stmt::CXXScalarValueInitExprClass:
   case Stmt::CXXUuidofExprClass:
   case Stmt::ChooseExprClass: