Report target file on injector generation failure

generators/src/org/jetbrains/jet/generators/injectors/GenerateInjectors.java

@@ -55,10 +55,16 @@ public class GenerateInjectors {
     private GenerateInjectors() {
     }
 
-    public static void main(String[] args) throws IOException {
+    public static void main(String[] args) throws Throwable {
         for (DependencyInjectorGenerator generator : createGenerators()) {
+            try {
                 generator.generate();
             }
+            catch (Throwable e) {
+                System.err.println(generator.getOutputFile());
+                throw e;
+            }
+        }
     }
 
     public static List<DependencyInjectorGenerator> createGenerators() throws IOException {