Support elsif in ripper translation

Author: kddnewton

lib/prism/translation/ripper.rb

@@ -1488,7 +1488,11 @@ def visit_if_node(node)
           consequent = visit(node.consequent)
 
           bounds(node.location)
-          on_if(predicate, statements, consequent)
+          if node.if_keyword == "if"
+            on_if(predicate, statements, consequent)
+          else
+            on_elsif(predicate, statements, consequent)
+          end
         else
           statements = visit(node.statements.body.first)
           predicate = visit(node.predicate)

test/prism/ripper_test.rb

@@ -57,16 +57,13 @@ class RipperTest < TestCase
     ]
 
     skips = incorrect | heredocs | %w[
-      if.txt
       rescue.txt
       seattlerb/TestRubyParserShared.txt
       seattlerb/block_call_dot_op2_brace_block.txt
       seattlerb/block_command_operation_colon.txt
       seattlerb/block_command_operation_dot.txt
-      seattlerb/if_elsif.txt
       unparser/corpus/literal/block.txt
       unparser/corpus/literal/kwbegin.txt
-      whitequark/if_elsif.txt
       whitequark/send_block_chain_cmd.txt
     ]