Include whether the destructor is constexpr in -ast-dump output for a
clss.

llvm-svn: 374488
diff --git a/clang/lib/AST/TextNodeDumper.cpp b/clang/lib/AST/TextNodeDumper.cpp
index 9b76652..63a6510 100644
--- a/clang/lib/AST/TextNodeDumper.cpp
+++ b/clang/lib/AST/TextNodeDumper.cpp
@@ -1643,6 +1643,7 @@
       FLAG(hasTrivialDestructor, trivial);
       FLAG(hasNonTrivialDestructor, non_trivial);
       FLAG(hasUserDeclaredDestructor, user_declared);
+      FLAG(hasConstexprDestructor, constexpr);
       FLAG(needsImplicitDestructor, needs_implicit);
       FLAG(needsOverloadResolutionForDestructor, needs_overload_resolution);
       if (!D->needsOverloadResolutionForDestructor())