Use the new compilejast list ops.

Author: donaldh

src/vm/jvm/HLL/Backend.nqp

@@ -61,11 +61,11 @@ class HLL::Backend::JVM {
 
     method classfile($jast, *%adverbs) {
         if (%adverbs<target> eq 'classfile' || %adverbs<target> eq 'jar') && %adverbs<output> {
-            nqp::compilejasttofile($jast.dump(), %adverbs<output>);
+            nqp::compilejastlinestofile($jast.dump(), %adverbs<output>);
             nqp::null()
         }
         else {
-            nqp::compilejast($jast.dump());
+            nqp::compilejastlines($jast.dump());
         }
     }
 

src/vm/jvm/QAST/JASTNodes.nqp

@@ -42,7 +42,7 @@ class JAST::Class is JAST::Node {
         for @!methods {
             $_.dump(@dumped);
         }
-        return nqp::join("\n", @dumped);
+        return @dumped;
     }
 }