Fix up multi write parentheses in ripper translation

Author: kddnewton

lib/prism/translation/ripper.rb

@@ -1936,6 +1936,11 @@ def visit_multi_write_node(node)
             end
           end
 
+        unless node.lparen_loc.nil?
+          bounds(node.lparen_loc)
+          targets = on_mlhs_paren(targets)
+        end
+
         value = visit(node.value)
 
         bounds(node.location)

test/prism/ripper_test.rb

@@ -99,7 +99,6 @@ class RipperTest < TestCase
       seattlerb/masgn_colon3.txt
       seattlerb/masgn_double_paren.txt
       seattlerb/masgn_lhs_splat.txt
-      seattlerb/masgn_paren.txt
       seattlerb/masgn_splat_arg.txt
       seattlerb/masgn_splat_arg_arg.txt
       seattlerb/masgn_star.txt
@@ -150,7 +149,6 @@ class RipperTest < TestCase
       unparser/corpus/literal/case.txt
       unparser/corpus/literal/class.txt
       unparser/corpus/literal/def.txt
-      unparser/corpus/literal/defined.txt
       unparser/corpus/literal/dstr.txt
       unparser/corpus/literal/empty.txt
       unparser/corpus/literal/for.txt