py/modcollections: Rename module name have "u" prefix for consistency.

py/modcollections.c

@@ -29,7 +29,7 @@
 #if MICROPY_PY_COLLECTIONS
 
 STATIC const mp_rom_map_elem_t mp_module_collections_globals_table[] = {
-    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR__collections) },
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_ucollections) },
     { MP_ROM_QSTR(MP_QSTR_namedtuple), MP_ROM_PTR(&mp_namedtuple_obj) },
     #if MICROPY_PY_COLLECTIONS_ORDEREDDICT
     { MP_ROM_QSTR(MP_QSTR_OrderedDict), MP_ROM_PTR(&mp_type_ordereddict) },
@@ -40,7 +40,7 @@ STATIC MP_DEFINE_CONST_DICT(mp_module_collections_globals, mp_module_collections
 
 const mp_obj_module_t mp_module_collections = {
     .base = { &mp_type_module },
-    .name = MP_QSTR__collections,
+    .name = MP_QSTR_ucollections,
     .globals = (mp_obj_dict_t*)&mp_module_collections_globals,
 };
 

py/objmodule.c

@@ -140,7 +140,7 @@ STATIC const mp_rom_map_elem_t mp_builtin_module_table[] = {
     { MP_ROM_QSTR(MP_QSTR_uio), MP_ROM_PTR(&mp_module_io) },
 #endif
 #if MICROPY_PY_COLLECTIONS
-    { MP_ROM_QSTR(MP_QSTR__collections), MP_ROM_PTR(&mp_module_collections) },
+    { MP_ROM_QSTR(MP_QSTR_ucollections), MP_ROM_PTR(&mp_module_collections) },
 #endif
 #if MICROPY_PY_STRUCT
     { MP_ROM_QSTR(MP_QSTR_ustruct), MP_ROM_PTR(&mp_module_ustruct) },