Rename bultins config variables to MICROPY_PY_BUILTINS_*.

This renames:
MICROPY_PY_FROZENSET -> MICROPY_PY_BUILTINS_FROZENSET
MICROPY_PY_PROPERTY -> MICROPY_PY_BUILTINS_PROPERTY
MICROPY_PY_SLICE -> MICROPY_PY_BUILTINS_SLICE
MICROPY_ENABLE_FLOAT -> MICROPY_PY_BUILTINS_FLOAT

See issue #35 for discussion.

1 files changed, 1 insertions, 1 deletions

diff --git a/py/obj.c b/py/obj.c
index f8b5ee34d..6d0966db2 100644
--- a/py/obj.c
+++ b/py/obj.c
@@ -257,7 +257,7 @@ bool mp_obj_get_int_maybe(mp_const_obj_t arg, machine_int_t *value) {
     return true;
 }
 
-#if MICROPY_ENABLE_FLOAT
+#if MICROPY_PY_BUILTINS_FLOAT
 mp_float_t mp_obj_get_float(mp_obj_t arg) {
     if (arg == mp_const_false) {
         return 0;