Mark a struct definition in an objc container with the TopLevelDeclInObjCContainer bit.

Fixes accurately getting a cursor inside an objc container containing a struct definition,
from a PCH/preamble file.

rdar://12584613

llvm-svn: 173811
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 56db548..3350640 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -9761,7 +9761,11 @@
 
   // Exit this scope of this tag's definition.
   PopDeclContext();
-                                          
+
+  if (getCurLexicalContext()->isObjCContainer() &&
+      Tag->getDeclContext()->isFileContext())
+    Tag->setTopLevelDeclInObjCContainer();
+
   // Notify the consumer that we've defined a tag.
   Consumer.HandleTagDeclDefinition(Tag);
 }