Change OwningPtr::take() to OwningPtr::release().

This is a precursor to moving to std::unique_ptr.

llvm-svn: 203275
diff --git a/clang/lib/Serialization/GlobalModuleIndex.cpp b/clang/lib/Serialization/GlobalModuleIndex.cpp
index fcdf5f5..e46cb97 100644
--- a/clang/lib/Serialization/GlobalModuleIndex.cpp
+++ b/clang/lib/Serialization/GlobalModuleIndex.cpp
@@ -247,8 +247,9 @@
       Cursor.Read(8) != 'I') {
     return std::make_pair((GlobalModuleIndex *)0, EC_IOError);
   }
-  
-  return std::make_pair(new GlobalModuleIndex(Buffer.take(), Cursor), EC_None);
+
+  return std::make_pair(new GlobalModuleIndex(Buffer.release(), Cursor),
+                        EC_None);
 }
 
 void