Fling: implement the new DartCompilerListener.unitCompiled() method.

client/fling/src/java/core/com/google/dart/CompileService.java

Index: client/fling/src/java/core/com/google/dart/CompileService.java
diff --git a/client/fling/src/java/core/com/google/dart/CompileService.java b/client/fling/src/java/core/com/google/dart/CompileService.java
index fe622a32b608730d6c3cf2c780b5d96b02865ca5..6aff85b0e4eecebaa078ea2767642314244c5714 100644
--- a/client/fling/src/java/core/com/google/dart/CompileService.java
+++ b/client/fling/src/java/core/com/google/dart/CompileService.java
@@ -26,6 +26,7 @@ import com.google.dart.compiler.DefaultCompilerConfiguration;
 import com.google.dart.compiler.LibrarySource;
 import com.google.dart.compiler.Source;
 import com.google.dart.compiler.UrlLibrarySource;
+import com.google.dart.compiler.ast.DartUnit;
 import com.google.dart.compiler.backend.js.JavascriptBackend;
 
 /**
@@ -143,6 +144,10 @@ public class CompileService {
     public void typeError(DartCompilationError error) {
       typeErrors.add(CompileError.from(error));
     }
+
+    @Override
+    public void unitCompiled(DartUnit unit) {
+    }
   }
   
   /**
@@ -192,6 +197,10 @@ public class CompileService {
             public void typeError(DartCompilationError error) {
               throw new RuntimeException("Unable to build runtime lib: " + error);
             }
+
+            @Override
+            public void unitCompiled(DartUnit unit) { 
+            }
           });
       return snapshot;
     } catch (IOException e) {