std: Remove struct ctors

src/libstd/c_vec.rs

@@ -44,7 +44,6 @@ enum CVec<T> {
 
 struct DtorRes {
   let dtor: Option<fn@()>;
-  new(dtor: Option<fn@()>) { self.dtor = dtor; }
   drop {
     match self.dtor {
       option::None => (),
@@ -53,6 +52,12 @@ struct DtorRes {
   }
 }
 
+fn DtorRes(dtor: Option<fn@()>) -> DtorRes {
+    DtorRes {
+        dtor: dtor
+    }
+}
+
 /*
  Section: Introduction forms
  */