Get should be a const method.

Otherwise, the returned handler_ can still be modified.

Change-Id: I59dea4aa5284f7154d3c096556e6e497890c26ca
diff --git a/src/dex_file.h b/src/dex_file.h
index b0b38d0..2de46f8 100644
--- a/src/dex_file.h
+++ b/src/dex_file.h
@@ -219,7 +219,7 @@
         Next();
       }
 
-      CatchHandlerItem& Get() {
+      const CatchHandlerItem& Get() const {
         return handler_;
       }