Change the logging object so we don't keep appending empty arrays.

Author: aardvark179

spec/truffle/interop/fixtures/classes.rb

@@ -17,7 +17,7 @@ def initialize
       @log = []
     end
 
-    def log(*args)
+    def <<(*args)
       @log << args
     end
   end

src/main/java/org/truffleruby/interop/ProxyForeignObject.java

@@ -56,7 +56,7 @@ protected Object send(Message message, Object[] rawArgs,
             }
             Object[] loggingArgs = ArrayUtils.unshift(args, message.getSimpleName());
             Object[] convertedArgs = foreignToRubyArgumentsNode.executeConvert(loggingArgs);
-            dispatchNode.call(logger, "log", convertedArgs);
+            dispatchNode.call(logger, "<<", convertedArgs);
         }
 
         return reflections.send(delegate, message, rawArgs);