initial changes

compiler/frontend/src/jet/Library.jet

@@ -52,7 +52,7 @@ class String() : Comparable<String>, CharSequence {
   fun equals(other : Any?) : Boolean
 }
 
-class Throwable(message : String? = null, cause: Throwable? = null) {
+open class Throwable(message : String? = null, cause: Throwable? = null) {
     fun getMessage() : String?
     fun getCause() : Throwable?
     fun printStackTrace() : Unit

compiler/frontend/src/org/jetbrains/jet/lang/resolve/AnnotationResolver.java

@@ -173,8 +173,8 @@ public class AnnotationResolver {
         List<AnnotationDescriptor> result = Lists.newArrayList();
         for (JetAnnotationEntry annotation : annotations) {
             AnnotationDescriptor annotationDescriptor = new AnnotationDescriptor();
-            result.add(annotationDescriptor);
-            trace.record(BindingContext.ANNOTATION, annotation, annotationDescriptor);
+            // result.add(annotationDescriptor);
+            //  trace.record(BindingContext.ANNOTATION, annotation, annotationDescriptor);
         }
         return result;
     }

compiler/frontend/src/org/jetbrains/jet/lang/types/JetStandardLibrary.java

@@ -462,6 +462,11 @@ public class JetStandardLibrary {
         return volatileType;
     }
 
+    @NotNull
+    public Collection<ClassDescriptor> getArrayClasses() {
+        return primitiveTypeToArrayClass.values();
+    }
+
     public final boolean isVolatile(PropertyDescriptor descriptor) {
         List<AnnotationDescriptor> annotations = descriptor.getOriginal().getAnnotations();
         if(annotations != null) {

compiler/frontend/src/org/jetbrains/jet/plugin/JetMainDetector.java

@@ -16,10 +16,9 @@
 
 package org.jetbrains.jet.plugin;
 
-import org.jetbrains.jet.lang.psi.JetDeclaration;
-import org.jetbrains.jet.lang.psi.JetNamedFunction;
-import org.jetbrains.jet.lang.psi.JetParameter;
-import org.jetbrains.jet.lang.psi.JetTypeReference;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.jet.lang.psi.*;
 
 import java.util.List;
 
@@ -51,4 +50,23 @@ public class JetMainDetector {
         }
         return false;
     }
+
+    @Nullable
+    public static String getMainClassFQName(@NotNull List<JetFile> files) {
+        JetFile file = getFileWithMain(files);
+        if (file == null) {
+            return null;
+        }
+        return JetPsiUtil.getFQName(file);
+    }
+
+    @Nullable
+    public static JetFile getFileWithMain(@NotNull List<JetFile> files) {
+        for (JetFile file : files) {
+            if (hasMain(file.getDeclarations())) {
+                return file;
+            }
+        }
+        return null;
+    }
 }