[PATCH] iseq.c (iseq_data_to_ary): dump kw_arg as symbol

[Eric Wong <e@80x24.org>]

Fix RubyVM::InstructionSequence#to_a after r49517
Keywords were made symbols to fix [Bug #10831] [ruby-core:68031],
so we should dump symbols as-is instead of attempting to convert
them from IDs

* iseq.c (iseq_data_to_ary): dump kw_arg as symbol
* test/-ext-/iseq_load/test_iseq_load.rb: test kw_arg roundtrip
---
 iseq.c                                 | 2 +-
 test/-ext-/iseq_load/test_iseq_load.rb | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/iseq.c b/iseq.c
index 48de119..1108f77 100644
--- a/iseq.c
+++ b/iseq.c
@@ -1820,7 +1820,7 @@ iseq_data_to_ary(rb_iseq_t *iseq)
 
 			orig_argc -= ci->kw_arg->keyword_len;
 			for (i = 0; i < ci->kw_arg->keyword_len; i++) {
-			    rb_ary_push(kw, ID2SYM(ci->kw_arg->keywords[i]));
+			    rb_ary_push(kw, ci->kw_arg->keywords[i]);
 			}
 			rb_hash_aset(e, ID2SYM(rb_intern("kw_arg")), kw);
 		    }
diff --git a/test/-ext-/iseq_load/test_iseq_load.rb b/test/-ext-/iseq_load/test_iseq_load.rb
index 7251603..5dfd69a 100644
--- a/test/-ext-/iseq_load/test_iseq_load.rb
+++ b/test/-ext-/iseq_load/test_iseq_load.rb
@@ -86,6 +86,15 @@ class TestIseqLoad < Test::Unit::TestCase
     assert_iseq_roundtrip(src)
   end
 
+  def test_kwarg
+    assert_iseq_roundtrip <<-'end;'
+      def foo(kwarg: :foo)
+        kwarg
+      end
+      foo(kwarg: :bar)
+    end;
+  end
+
   # FIXME: still failing
   def test_require_integration
     skip "iseq loader require integration tests still failing"
-- 
EW