Extracted OutputFileFactory interface.

idea/src/org/jetbrains/jet/plugin/internal/codewindow/BytecodeToolwindow.java

@@ -106,7 +106,7 @@ public class BytecodeToolwindow extends JPanel implements Disposable {
             StringBuilder answer = new StringBuilder();
 
             ClassFileFactory factory = state.getFactory();
-            for (String filename : factory.files()) {
+            for (String filename : factory.getOutputFiles()) {
                 answer.append("// ================");
                 answer.append(filename);
                 answer.append(" =================\n");

idea/tests/org/jetbrains/jet/plugin/debugger/PositionManagerTestCase.java

@@ -128,7 +128,7 @@ public abstract class PositionManagerTestCase extends MultiFileTestCase {
 
     private static Map<String, ReferenceType> getReferenceMap(ClassFileFactory classFileFactory) {
         Map<String, ReferenceType> referencesByName = Maps.newHashMap();
-        for (String classFileName : classFileFactory.files()) {
+        for (String classFileName : classFileFactory.getOutputFiles()) {
             String name = classFileName.substring(0, classFileName.lastIndexOf('.'));
             referencesByName.put(name, new MockReferenceType(name));
         }