Rename DeclContext::insert to DeclContext::makeDeclVisibleInContext and document both it and DeclContext::addDecl properly

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62581 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index ec769a1..6f731ca 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -800,7 +800,7 @@
         //   definition, the members of the anonymous union are
         //   considered to have been defined in the scope in which the
         //   anonymous union is declared.
-        Owner->insert(*F);
+        Owner->makeDeclVisibleInContext(*F);
         S->AddDecl(*F);
         IdResolver.AddDecl(*F);
       }