[ruby/prism] RubyParser translation for stabby lambdas with it

ruby/prism@c2e372a8d8

Author: presidentbeef

lib/prism/translation/ruby_parser.rb

@@ -1151,7 +1151,7 @@ def visit_keyword_rest_parameter_node(node)
         def visit_lambda_node(node)
           parameters =
             case node.parameters
-            when nil, NumberedParametersNode
+            when nil, ItParametersNode, NumberedParametersNode
               s(node, :args)
             else
               visit(node.parameters)

test/prism/fixtures/it.txt

@@ -1,3 +1,5 @@
 x do
   it
 end
+
+-> { it }

test/prism/ruby/parser_test.rb

@@ -181,9 +181,13 @@ def test_it_block_parameter_syntax
       actual_ast = Prism::Translation::Parser34.new.tokenize(buffer)[0]
 
       it_block_parameter_sexp = parse_sexp {
+        s(:begin,
         s(:itblock,
           s(:send, nil, :x), :it,
-          s(:lvar, :it))
+          s(:lvar, :it)),
+        s(:itblock,
+          s(:lambda), :it,
+          s(:lvar, :it)))
       }
 
       assert_equal(it_block_parameter_sexp, actual_ast.to_sexp)