YJIT: Fixup kwrest stack base

I was a little rushed and didn't notice that it was still using the
final stack size even though we don't grow the stack before kwrest
handling anymore. Oh well, we got a new test out of it.

Fix: cbdabd5890

1 files changed, 11 insertions, 0 deletions

diff --git a/bootstraptest/test_yjit.rb b/bootstraptest/test_yjit.rb
index d5427588e0..753b1920d7 100644
--- a/bootstraptest/test_yjit.rb
+++ b/bootstraptest/test_yjit.rb
@@ -4538,3 +4538,14 @@ assert_normal_exit %q{
 
   Foo.new.try
 }
+
+# a kwrest case
+assert_equal '[1, 2, {:complete=>false}]', %q{
+  def rest(foo: 1, bar: 2, **kwrest)
+    [foo, bar, kwrest]
+  end
+
+  def callsite = rest(complete: false)
+
+  callsite
+}