Fix vool assignments after call rework

also small fix for if and return, as they need to execute sneds and yields (not just sends), so testing for Call not SendStatement

lib/ruby/return_statement.rb

@@ -9,10 +9,10 @@ module Ruby
     end
 
     def to_vool
-      val , rest = *normalize_name(@return_value)
-      me = Vool::ReturnStatement.new(val.to_vool)
-      return me unless rest
-      Vool::Statements.new([ rest.to_vool , me])
+      val , hoisted = *normalized_vool(@return_value)
+      me = Vool::ReturnStatement.new(val)
+      return me unless hoisted
+      Vool::Statements.new( hoisted ) << me
     end
 
     def to_s(depth = 0)