fix(rivet/ast): fix C compilation error

StunxFS · StunxFS · commit 9ce7a82a731d · 2023-11-15T21:37:08.000-04:00
diff --git a/lib/rivet/src/ast/CHeader.ri b/lib/rivet/src/ast/CHeader.ri
@@ -59,7 +59,7 @@ struct CDefine < traits.Stringable {
     has_value: bool;
     is_macro: bool;
 
-    mut cvalue: CImportValue;
+    mut cvalue: CImportValue := .Invalid();
     mut has_cvalue: bool;
 
     public func to_string(&self) -> string {
