py: Add mp_raise_msg_varg helper and use it where appropriate.

This commit adds mp_raise_msg_varg(type, fmt, ...) as a helper for
nlr_raise(mp_obj_new_exception_msg_varg(type, fmt, ...)).  It makes the
C-level API for raising exceptions more consistent, and reduces code size
on most ports:

   bare-arm:   +28 +0.042%
minimal x86:  +100 +0.067%
   unix x64:   -56 -0.011%
unix nanbox:  -300 -0.068%
      stm32:  -204 -0.054% PYBV10
     cc3200:    +0 +0.000%
    esp8266:   -64 -0.010% GENERIC
      esp32:  -104 -0.007% GENERIC
        nrf:  -136 -0.094% pca10040
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS

1 files changed, 7 insertions, 8 deletions

diff --git a/py/objnamedtuple.c b/py/objnamedtuple.c
index 3e0f66139..8e714aa32 100644
--- a/py/objnamedtuple.c
+++ b/py/objnamedtuple.c
@@ -98,13 +98,13 @@ STATIC mp_obj_t namedtuple_make_new(const mp_obj_type_t *type_in, size_t n_args,
         if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) {
             mp_arg_error_terse_mismatch();
         } else if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_NORMAL) {
-            nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError,
+            mp_raise_msg_varg(&mp_type_TypeError,
                 "function takes %d positional arguments but %d were given",
-                num_fields, n_args + n_kw));
+                num_fields, n_args + n_kw);
         } else if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED) {
-            nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError,
+            mp_raise_msg_varg(&mp_type_TypeError,
                 "%q() takes %d positional arguments but %d were given",
-                type->base.name, num_fields, n_args + n_kw));
+                type->base.name, num_fields, n_args + n_kw);
         }
     }
 
@@ -124,16 +124,15 @@ STATIC mp_obj_t namedtuple_make_new(const mp_obj_type_t *type_in, size_t n_args,
             if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) {
                 mp_arg_error_terse_mismatch();
             } else {
-                nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError,
-                    "unexpected keyword argument '%q'", kw));
+                mp_raise_msg_varg(&mp_type_TypeError, "unexpected keyword argument '%q'", kw);
             }
         }
         if (tuple->items[id] != MP_OBJ_NULL) {
             if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) {
                 mp_arg_error_terse_mismatch();
             } else {
-                nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError,
-                    "function got multiple values for argument '%q'", kw));
+                mp_raise_msg_varg(&mp_type_TypeError,
+                    "function got multiple values for argument '%q'", kw);
             }
         }
         tuple->items[id] = args[i + 1];