Make sure that ScopedDecls passed to DeclContext::addDecl are added into their lexical context

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61998 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index 8521b9b..f29417e 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -164,6 +164,13 @@
 // ScopedDecl Implementation
 //===----------------------------------------------------------------------===//
 
+void ScopedDecl::setDeclContext(DeclContext *DC) {
+  if (isOutOfSemaDC())
+    delete getMultipleDC();
+  
+  DeclCtx = reinterpret_cast<uintptr_t>(DC);
+}
+
 void ScopedDecl::setLexicalDeclContext(DeclContext *DC) {
   if (DC == getLexicalDeclContext())
     return;