Implement missing rb_eval_cmd_kw function.

Author: aardvark179

lib/truffle/truffle/cext.rb

@@ -1953,6 +1953,7 @@ def rb_global_variable(obj)
   end
 
   GC_REGISTERED_ADDRESSES = {}
+
   def rb_gc_register_address(address, obj)
     Truffle::Interop.to_native(address) unless Truffle::Interop.pointer?(address)
     GC_REGISTERED_ADDRESSES[address] = obj
@@ -1962,4 +1963,13 @@ def rb_gc_unregister_address(address)
     Truffle::Interop.to_native(address) unless Truffle::Interop.pointer?(address)
     GC_REGISTERED_ADDRESSES.delete(address)
   end
+
+  def rb_eval_cmd_kw(cmd, args, kw_splat)
+    case cmd
+    when String
+      eval(cmd)
+    else
+      cmd.call(*args)
+    end
+  end
 end

src/main/c/cext/call.c

@@ -228,3 +228,7 @@ int rb_method_boundp(VALUE klass, ID id, int ex) {
 VALUE rb_exec_recursive(VALUE (*func) (VALUE, VALUE, int), VALUE obj, VALUE arg) {
   return rb_tr_wrap(polyglot_invoke(RUBY_CEXT, "rb_exec_recursive", func, rb_tr_unwrap(obj), rb_tr_unwrap(arg)));
 }
+
+VALUE rb_eval_cmd_kw(VALUE cmd, VALUE args, int kw_splat) {
+  return RUBY_CEXT_INVOKE("rb_eval_cmd_kw", cmd, args, INT2FIX(kw_splat));
+}