[vala] Do not support instance field initializers in structs

[Jürg Billeter <juergbi src gnome org>]

commit b8193d8eb3f2fd50628dff2d1a30504ea885e184
Author: Luca Bruno <lethalman88 gmail com>
Date:   Wed Feb 24 23:00:11 2010 +0100

    Do not support instance field initializers in structs
    
    Fixes bug 567711.

 vala/valastruct.vala |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/vala/valastruct.vala b/vala/valastruct.vala
index 6ce33cc..7f933f0 100644
--- a/vala/valastruct.vala
+++ b/vala/valastruct.vala
@@ -792,6 +792,12 @@ public class Vala.Struct : TypeSymbol {
 				Report.error (f.source_reference, "Recursive value types are not allowed");
 				return false;
 			}
+
+			if (f.binding == MemberBinding.INSTANCE && f.initializer != null) {
+				error = true;
+				Report.error (f.source_reference, "Instance field initializers not supported");
+				return false;
+			}
 		}
 
 		foreach (Constant c in constants) {