Move `Kernel#send` to `mruby-metaprog` gem.

But `BasicObject#__send__` is still available from the core.

mrbgems/mruby-eval/test/eval.rb

@@ -34,7 +34,7 @@ assert('Kernel.eval', '15.3.1.2.3') do
   }
   assert_equal(2) {
     a = 10
-    Kernel.eval 'def f(a); b=a.send(:+, 1); end'
+    Kernel.eval 'def f(a); b=a+1; end'
     f(1)
   }
 end

mrbgems/mruby-metaprog/src/metaprog.c

@@ -680,6 +680,7 @@ mrb_mruby_metaprog_gem_init(mrb_state* mrb)
   mrb_define_method(mrb, krn, "public_methods", mrb_obj_public_methods, MRB_ARGS_OPT(1)); /* 15.3.1.3.38 */
   mrb_define_method(mrb, krn, "singleton_methods", mrb_obj_singleton_methods_m, MRB_ARGS_OPT(1)); /* 15.3.1.3.45 */
   mrb_define_method(mrb, krn, "define_singleton_method", mod_define_singleton_method, MRB_ARGS_ANY());
+  mrb_define_method(mrb, krn, "send", mrb_f_send, MRB_ARGS_ANY()); /* 15.3.1.3.44 */
 
   mrb_define_method(mrb, mod, "class_variables", mrb_mod_class_variables, MRB_ARGS_NONE()); /* 15.2.2.4.19 */
   mrb_define_method(mrb, mod, "remove_class_variable", mrb_mod_remove_cvar, MRB_ARGS_REQ(1)); /* 15.2.2.4.39 */

mrbgems/mruby-metaprog/test/metaprog.rb

+assert('Kernel#__send__', '15.3.1.3.4') do
+  # test with block
+  l = __send__(:lambda) do
+    true
+  end
+
+  assert_true l.call
+  assert_equal Proc, l.class
+  # test with argument
+  assert_true __send__(:respond_to?, :nil?)
+  # test without argument and without block
+  assert_equal String, __send__(:to_s).class
+end
+
+assert('Kernel#send', '15.3.1.3.44') do
+  # test with block
+  l = send(:lambda) do
+    true
+  end
+
+  assert_true l.call
+  assert_equal l.class, Proc
+  # test with argument
+  assert_true send(:respond_to?, :nil?)
+  # test without argument and without block
+  assert_equal send(:to_s).class, String
+end
 
 assert('Kernel#instance_variable_defined?', '15.3.1.3.20') do
   o = Object.new

mrbgems/mruby-method/test/method.rb

@@ -102,10 +102,7 @@ end
 
 assert 'Method#call for regression' do
   obj = BasicObject.new
-  def obj.foo
-    :ok
-  end
-  assert_equal :ok, Kernel.instance_method(:send).bind(obj).call(:foo), "https://github.com/ksss/mruby-method/issues/4"
+  assert_equal String, Kernel.instance_method(:inspect).bind(obj).call().class, "https://github.com/ksss/mruby-method/issues/4"
 end
 
 assert 'Method#call with undefined method' do

src/kernel.c

@@ -869,7 +869,6 @@ mrb_init_kernel(mrb_state *mrb)
   mrb_define_method(mrb, krn, "raise",                      mrb_f_raise,                     MRB_ARGS_ANY());     /* 15.3.1.3.40 */
   mrb_define_method(mrb, krn, "remove_instance_variable",   mrb_obj_remove_instance_variable,MRB_ARGS_REQ(1));    /* 15.3.1.3.41 */
   mrb_define_method(mrb, krn, "respond_to?",                obj_respond_to,                  MRB_ARGS_ANY());     /* 15.3.1.3.43 */
-  mrb_define_method(mrb, krn, "send",                       mrb_f_send,                      MRB_ARGS_ANY());     /* 15.3.1.3.44 */
   mrb_define_method(mrb, krn, "to_s",                       mrb_any_to_s,                    MRB_ARGS_NONE());    /* 15.3.1.3.46 */
   mrb_define_method(mrb, krn, "__case_eqq",                 mrb_obj_ceqq,                    MRB_ARGS_REQ(1));    /* internal */
 

test/t/codegen.rb

@@ -184,14 +184,14 @@ assert('register window of calls (#3783)') do
   # NODE_UNDEF
   assert_nothing_raised do
     class << Object.new
-      undef send
+      undef inspect
     end
   end
 
   # NODE_ALIAS
   assert_nothing_raised do
     class << Object.new
-      alias send2 send
+      alias inspect2 inspect
     end
   end
 end

test/t/kernel.rb

@@ -92,20 +92,6 @@ assert('Kernel#__id__', '15.3.1.3.3') do
   assert_equal Fixnum, __id__.class
 end
 
-assert('Kernel#__send__', '15.3.1.3.4') do
-  # test with block
-  l = __send__(:lambda) do
-    true
-  end
-
-  assert_true l.call
-  assert_equal Proc, l.class
-  # test with argument
-  assert_true __send__(:respond_to?, :nil?)
-  # test without argument and without block
-  assert_equal String, __send__(:to_s).class
-end
-
 assert('Kernel#block_given?', '15.3.1.3.6') do
   def bg_try(&b)
     if block_given?
@@ -440,20 +426,6 @@ assert('Kernel#respond_to?', '15.3.1.3.43') do
   assert_false Test4RespondTo.new.respond_to?(:test_method)
 end
 
-assert('Kernel#send', '15.3.1.3.44') do
-  # test with block
-  l = send(:lambda) do
-    true
-  end
-
-  assert_true l.call
-  assert_equal l.class, Proc
-  # test with argument
-  assert_true send(:respond_to?, :nil?)
-  # test without argument and without block
-  assert_equal send(:to_s).class, String
-end
-
 assert('Kernel#to_s', '15.3.1.3.46') do
   assert_equal to_s.class, String
 end

test/t/module.rb

@@ -536,61 +536,61 @@ end
   #end
 
   # mruby has no visibility control
-  assert 'Module#prepend visibility' do
-    bug8005 = '[ruby-core:53106] [Bug #8005]'
-    c = Class.new do
-      prepend Module.new {}
-      def foo() end
-      protected :foo
-    end
-    a = c.new
-    assert_true a.respond_to?(:foo), bug8005
-    assert_nothing_raised(bug8005) {a.send :foo}
-  end
+  # assert 'Module#prepend visibility' do
+  #   bug8005 = '[ruby-core:53106] [Bug #8005]'
+  #   c = Class.new do
+  #     prepend Module.new {}
+  #     def foo() end
+  #     protected :foo
+  #   end
+  #   a = c.new
+  #   assert_true a.respond_to?(:foo), bug8005
+  #   assert_nothing_raised(bug8005) {a.send :foo}
+  # end
 
   # mruby has no visibility control
-  assert 'Module#prepend inherited visibility' do
-    bug8238 = '[ruby-core:54105] [Bug #8238]'
-    module Test4PrependVisibilityInherited
-      class A
-        def foo() A; end
-        private :foo
-      end
-      class B < A
-        public :foo
-        prepend Module.new
-      end
-    end
-    assert_equal(Test4PrependVisibilityInherited::A, Test4PrependVisibilityInherited::B.new.foo, "#{bug8238}")
-  end
+  # assert 'Module#prepend inherited visibility' do
+  #   bug8238 = '[ruby-core:54105] [Bug #8238]'
+  #   module Test4PrependVisibilityInherited
+  #     class A
+  #       def foo() A; end
+  #       private :foo
+  #     end
+  #     class B < A
+  #       public :foo
+  #       prepend Module.new
+  #     end
+  #   end
+  #   assert_equal(Test4PrependVisibilityInherited::A, Test4PrependVisibilityInherited::B.new.foo, "#{bug8238}")
+  # end
 
-  assert 'Module#prepend super in alias' do
-    skip "super does not currently work in aliased methods"
-    bug7842 = '[Bug #7842]'
+  # assert 'Module#prepend super in alias' do
+  #   skip "super does not currently work in aliased methods"
+  #   bug7842 = '[Bug #7842]'
 
-    p = labeled_module("P") do
-      def m; "P"+super; end
-    end
+  #   p = labeled_module("P") do
+  #     def m; "P"+super; end
+  #   end
 
-    a = labeled_class("A") do
-      def m; "A"; end
-    end
+  #   a = labeled_class("A") do
+  #     def m; "A"; end
+  #   end
 
-    b = labeled_class("B", a) do
-      def m; "B"+super; end
-      alias m2 m
-      prepend p
-      alias m3 m
-    end
+  #   b = labeled_class("B", a) do
+  #     def m; "B"+super; end
+  #     alias m2 m
+  #     prepend p
+  #     alias m3 m
+  #   end
 
-    assert_nothing_raised do
-      assert_equal("BA", b.new.m2, bug7842)
-    end
+  #   assert_nothing_raised do
+  #     assert_equal("BA", b.new.m2, bug7842)
+  #   end
 
-    assert_nothing_raised do
-      assert_equal("PBA", b.new.m3, bug7842)
-    end
-  end
+  #   assert_nothing_raised do
+  #     assert_equal("PBA", b.new.m3, bug7842)
+  #   end
+  # end
 
   assert 'Module#prepend each class' do
     m = labeled_module("M")