[vala/staging] vala: Don't return null if no rank attribute was found

[Rico Tzschichholz <ricotz src gnome org>]

commit 5bdf8f5669fd49a36ee5a98974039087f32afa57
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon May 14 11:06:30 2018 +0200

    vala: Don't return null if no rank attribute was found
    
    There was already an error message introduced with
    3158ae7a0f990b44f114d51498636e669609af0d
    
    https://bugzilla.gnome.org/show_bug.cgi?id=660991

 vala/valastruct.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/vala/valastruct.vala b/vala/valastruct.vala
index 23c0053..bca7851 100644
--- a/vala/valastruct.vala
+++ b/vala/valastruct.vala
@@ -140,6 +140,7 @@ public class Vala.Struct : TypeSymbol {
                                                _rank = st.rank;
                                        } else {
                                                Report.error (source_reference, "internal error: struct has 
no rank");
+                                               return 0;
                                        }
                                }
                        }