[m-dev.] C compiler warnings in hlc grades

[Julien Fischer]

Hi,

The master branch is currently getting quite a lot of compiler warnings
of about missing casts in hlc grades.

../scripts/mgnuc --grade hlc.gc       --       -c string.to_string.c -o 
string.to_string.o
string.parse_runtime.c: In function 
‘mercury__string__parse_runtime__get_first_spec_10_p_0’:
string.parse_runtime.c:2351:72: warning: assignment makes pointer from 
integer without a cast [enabled by default]
                MR_hl_field(MR_mktag(0), STATE_VARIABLE_Flags_70_388, 0) = 
((((MR_Unsigned) (((MR_Box) (Var_71))) << (MR_Integer) 4)) | 
(((((MR_Unsigned) (((MR_Box) (Var_132))) << (MR_Integer) 3)) | 
(((((MR_Unsigned) (((MR_Box) (Var_133))) << (MR_Integer) 2)) | 
(((((MR_Unsigned) (((MR_Box) (Var_134))) << (MR_Integer) 1)) | 
(MR_Unsigned) (((MR_Box) (Var_135))))))))));
                                                                         ^
string.parse_util.c: In function 
‘mercury__string__parse_util__gather_flag_chars_4_p_0’:
string.parse_util.c:3505:71: warning: assignment makes pointer from 
integer without a cast [enabled by default]
                MR_hl_field(MR_mktag(0), STATE_VARIABLE_Flags_21_21, 0) = 
((((MR_Unsigned) (((MR_Box) (Var_54))) << (MR_Integer) 4)) | 
(((((MR_Unsigned) (((MR_Box) (Var_20))) << (MR_Integer) 3)) | 
(((((MR_Unsigned) (((MR_Box) (Var_52))) << (MR_Integer) 2)) | 
(((((MR_Unsigned) (((MR_Box) (Var_51))) << (MR_Integer) 1)) | 
(MR_Unsigned) (((MR_Box) (Var_50))))))))))

Julien.