Update c++ codegen

codegen/ast_kinds.hpp

@@ -14,6 +14,7 @@ char const* desc_Ident = "identifier";
 struct Ident {
 	Token   token;
 	Entity *entity;
+	u32     hash;
 };
 
 char const* desc_Implicit = "implicit";

codegen/type_kinds.hpp

@@ -5,11 +5,15 @@ These are not to be used directly. They are parsed by gen_src.cpp
 
 typedef BasicType Basic;
 
-struct Named {
-	String  name;
-	Type   *base;
-	Entity *type_name; /* Entity_TypeName */
-};
+typedef TypeNamed Named;
+// struct Named {
+// 	String  name;
+// 	Type   *base;
+// 	Entity *type_name; /* Entity_TypeName */
+
+// 	BlockingMutex gen_types_data_mutex;
+// 	GenTypesData *gen_types_data;
+// };
 
 struct Generic {
 	i64     id;