Sema: Instantiation of variable definitions weren't local enough

We wouldn't properly save and restore the pending local instantiations
we had built up prior to instantiation of a variable definition.  This
would lead to us instantiating too much causing crashes and other
general badness.

This fixes PR14374.

llvm-svn: 195887

1 files changed, 20 insertions, 0 deletions

diff --git a/clang/test/SemaTemplate/instantiate-local-class.cpp b/clang/test/SemaTemplate/instantiate-local-class.cpp
index 2b5db0fda3e..bdc5ea0d4a8 100644
--- a/clang/test/SemaTemplate/instantiate-local-class.cpp
+++ b/clang/test/SemaTemplate/instantiate-local-class.cpp
@@ -160,3 +160,23 @@ void call() {
   C::func([]() {});
 }
 }
+
+namespace PR14373 {
+  struct function {
+    template <typename _Functor> function(_Functor __f) { __f(); }
+  };
+  template <typename Func> function exec_func(Func f) {
+    struct functor {
+      functor(Func f) : func(f) {}
+      void operator()() const { func(); }
+      Func func;
+    };
+    return functor(f);
+  }
+  struct Type {
+    void operator()() const {}
+  };
+  int call() {
+    exec_func(Type());
+  }
+}