When checking whether one declaration context encloses another, make sure to look at the primary contexts. Thanks to Eli for the test case

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80212 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index 8296f2931b..cd5b0063a6 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -448,6 +448,16 @@ bool DeclContext::isTransparentContext() const {
   return false;
 }
 
+bool DeclContext::Encloses(DeclContext *DC) {
+  if (getPrimaryContext() != this)
+    return getPrimaryContext()->Encloses(DC);
+  
+  for (; DC; DC = DC->getParent())
+    if (DC->getPrimaryContext() == this)
+      return true;
+  return false;  
+}
+
 DeclContext *DeclContext::getPrimaryContext() {
   switch (DeclKind) {
   case Decl::TranslationUnit: