Reinstate r127112, "Propagate new-style exception spec information to ExtProtoInfo.", this time with the missing header.

llvm-svn: 127118
diff --git a/clang/lib/Sema/SemaExprCXX.cpp b/clang/lib/Sema/SemaExprCXX.cpp
index eee0209..e4ac3ed 100644
--- a/clang/lib/Sema/SemaExprCXX.cpp
+++ b/clang/lib/Sema/SemaExprCXX.cpp
@@ -1501,7 +1501,7 @@
   }
 
   FunctionProtoType::ExtProtoInfo EPI;
-  EPI.HasExceptionSpec = true;
+  EPI.ExceptionSpecType = EST_Dynamic;
   if (HasBadAllocExceptionSpec) {
     EPI.NumExceptions = 1;
     EPI.Exceptions = &BadAllocType;