Merge pull request #4362 from shuujii/move-Array-append-prepend-from-core-to-mruby-ary-ext

Move `Array#(append|prepend)` from core to `mruby-ary-ext`

mrbgems/mruby-array-ext/mrblib/array.rb

@@ -936,4 +936,7 @@ class Array
     end
     h
   end
+
+  alias append push
+  alias prepend unshift
 end

src/array.c

@@ -1286,7 +1286,6 @@ mrb_init_array(mrb_state *mrb)
   mrb_define_method(mrb, a, "length",          mrb_ary_size,         MRB_ARGS_NONE()); /* 15.2.12.5.19 */
   mrb_define_method(mrb, a, "pop",             mrb_ary_pop,          MRB_ARGS_NONE()); /* 15.2.12.5.21 */
   mrb_define_method(mrb, a, "push",            mrb_ary_push_m,       MRB_ARGS_ANY());  /* 15.2.12.5.22 */
-  mrb_define_method(mrb, a, "append",          mrb_ary_push_m,       MRB_ARGS_ANY());
   mrb_define_method(mrb, a, "replace",         mrb_ary_replace_m,    MRB_ARGS_REQ(1)); /* 15.2.12.5.23 */
   mrb_define_method(mrb, a, "reverse",         mrb_ary_reverse,      MRB_ARGS_NONE()); /* 15.2.12.5.24 */
   mrb_define_method(mrb, a, "reverse!",        mrb_ary_reverse_bang, MRB_ARGS_NONE()); /* 15.2.12.5.25 */
@@ -1295,7 +1294,6 @@ mrb_init_array(mrb_state *mrb)
   mrb_define_method(mrb, a, "size",            mrb_ary_size,         MRB_ARGS_NONE()); /* 15.2.12.5.28 */
   mrb_define_method(mrb, a, "slice",           mrb_ary_aget,         MRB_ARGS_ANY());  /* 15.2.12.5.29 */
   mrb_define_method(mrb, a, "unshift",         mrb_ary_unshift_m,    MRB_ARGS_ANY());  /* 15.2.12.5.30 */
-  mrb_define_method(mrb, a, "prepend",         mrb_ary_unshift_m,    MRB_ARGS_ANY());
 
   mrb_define_method(mrb, a, "__ary_eq",        mrb_ary_eq,           MRB_ARGS_REQ(1));
   mrb_define_method(mrb, a, "__ary_cmp",       mrb_ary_cmp,          MRB_ARGS_REQ(1));