Add some more DISALLOW_COPY_AND_ASSIGN

May help prevent bugs maybe.

Change-Id: Ie73d469dfcd078492ecb3aa28682b42707221202
diff --git a/runtime/gc/collector/semi_space.h b/runtime/gc/collector/semi_space.h
index 61fbead..3c25f53 100644
--- a/runtime/gc/collector/semi_space.h
+++ b/runtime/gc/collector/semi_space.h
@@ -278,7 +278,7 @@
 
  private:
   friend class BitmapSetSlowPathVisitor;
-  DISALLOW_COPY_AND_ASSIGN(SemiSpace);
+  DISALLOW_IMPLICIT_CONSTRUCTORS(SemiSpace);
 };
 
 }  // namespace collector