added ERROR_CONFIGURATION to not to confuse it with empty configuration

compiler/frontend/src/org/jetbrains/jet/analyzer/AnalyzeExhaust.java

@@ -19,19 +19,44 @@ package org.jetbrains.jet.analyzer;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.ModuleConfiguration;
+import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
 import org.jetbrains.jet.lang.descriptors.NamespaceDescriptor;
 import org.jetbrains.jet.lang.psi.JetImportDirective;
 import org.jetbrains.jet.lang.resolve.BindingContext;
 import org.jetbrains.jet.lang.resolve.BindingTrace;
 import org.jetbrains.jet.lang.resolve.BodiesResolveContext;
+import org.jetbrains.jet.lang.resolve.name.FqNameUnsafe;
 import org.jetbrains.jet.lang.resolve.scopes.WritableScope;
 
 import java.util.Collection;
+import java.util.Collections;
 
 /**
  * @author Stepan Koltsov
  */
 public class AnalyzeExhaust {
+    private static final ModuleConfiguration ERROR_CONFIGURATION = new ModuleConfiguration() {
+        @Override
+        public void addDefaultImports(@NotNull Collection<JetImportDirective> directives) {
+        }
+
+        @Override
+        public void extendNamespaceScope(@NotNull BindingTrace trace, @NotNull NamespaceDescriptor namespaceDescriptor, @NotNull WritableScope namespaceMemberScope) {
+        }
+
+        @NotNull
+        @Override
+        public Collection<ClassDescriptor> getKotlinAnalogs(@NotNull FqNameUnsafe className) {
+            return Collections.emptyList();
+        }
+
+        @Override
+        public String toString() {
+            return "ERROR_CONFIGURATION";
+        }
+    };
+
+
     private final BindingContext bindingContext;
     private final Throwable error;
     private final BodiesResolveContext bodiesResolveContext;
@@ -61,7 +86,7 @@ public class AnalyzeExhaust {
     }
 
     public static AnalyzeExhaust error(@NotNull BindingContext bindingContext, @NotNull Throwable error) {
-        return new AnalyzeExhaust(bindingContext, ModuleConfiguration.EMPTY, null, error);
+        return new AnalyzeExhaust(bindingContext, ERROR_CONFIGURATION, null, error);
     }
 
     @Nullable

compiler/frontend/src/org/jetbrains/jet/lang/ModuleConfiguration.java

@@ -45,6 +45,11 @@ public interface ModuleConfiguration {
         public Collection<ClassDescriptor> getKotlinAnalogs(@NotNull FqNameUnsafe className) {
             return Collections.emptyList();
         }
+
+        @Override
+        public String toString() {
+            return "EMPTY";
+        }
     };
 
     void addDefaultImports(@NotNull Collection<JetImportDirective> directives);