struct type construction

compiler/types/types.odin

@@ -369,7 +369,7 @@ struct_anonymous :: proc(store: ^Store, fields: []Field, tuple := false) -> Type
 
 // Generated structs are nominal per comptime type-expression specialization.
 // The checker owns canonicalization; this routine deliberately creates a fresh node.
-struct_generated :: proc(store: ^Store, fields: []Field, tuple := false) -> Type {
+struct_generated :: proc(store: ^Store, fields: []Field, tuple := false, c_layout := false) -> Type {
 	start := u32(len(store.fields))
 	append(&store.fields, ..fields)
 	id := DYNAMIC_START+Type(len(store.nodes))
@@ -378,6 +378,7 @@ struct_generated :: proc(store: ^Store, fields: []Field, tuple := false) -> Type
 		field_start=start,
 		field_count=u32(len(fields)),
 		tuple=tuple,
+		c_layout=c_layout,
 		declared=true,
 	})
 	return id