Implement the sizeof...(pack) expression to compute the length of a
parameter pack.

Note that we're missing proper libclang support for the new
SizeOfPackExpr expression node.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122813 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXCursor.cpp b/tools/libclang/CXCursor.cpp
index 22758f9..1a75284 100644
--- a/tools/libclang/CXCursor.cpp
+++ b/tools/libclang/CXCursor.cpp
@@ -165,6 +165,7 @@
   case Stmt::BlockExprClass:  
   case Stmt::OpaqueValueExprClass:
   case Stmt::PackExpansionExprClass:
+  case Stmt::SizeOfPackExprClass:
     K = CXCursor_UnexposedExpr;
     break;