Rename non-Ident fields previously named ident

It will be clearer to avoid using 'ident' to refer to anything but Ident.
diff --git a/gen/src/namespace.rs b/gen/src/namespace.rs
index 7343875..b79c38f 100644
--- a/gen/src/namespace.rs
+++ b/gen/src/namespace.rs
@@ -4,10 +4,10 @@
 impl Api {
     pub fn namespace(&self) -> &Namespace {
         match self {
-            Api::CxxFunction(efn) | Api::RustFunction(efn) => &efn.ident.namespace,
-            Api::CxxType(ety) | Api::RustType(ety) => &ety.ident.namespace,
-            Api::Enum(enm) => &enm.ident.namespace,
-            Api::Struct(strct) => &strct.ident.namespace,
+            Api::CxxFunction(efn) | Api::RustFunction(efn) => &efn.name.namespace,
+            Api::CxxType(ety) | Api::RustType(ety) => &ety.name.namespace,
+            Api::Enum(enm) => &enm.name.namespace,
+            Api::Struct(strct) => &strct.name.namespace,
             Api::Impl(_) | Api::Include(_) | Api::TypeAlias(_) => Default::default(),
         }
     }