diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/CompileTimeConstantResolver.java b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/CompileTimeConstantResolver.java
index 191dc832f98..d414b379599 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/CompileTimeConstantResolver.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/CompileTimeConstantResolver.java
@@ -24,6 +24,7 @@ import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.JetNodeTypes;
 import org.jetbrains.jet.lang.diagnostics.AbstractDiagnosticFactory;
 import org.jetbrains.jet.lang.diagnostics.Diagnostic;
+import org.jetbrains.jet.lang.diagnostics.rendering.DefaultErrorMessages;
 import org.jetbrains.jet.lang.psi.JetConstantExpression;
 import org.jetbrains.jet.lang.psi.JetElement;
 import org.jetbrains.jet.lang.types.JetType;
@@ -35,7 +36,6 @@ import org.jetbrains.jet.lang.types.lang.KotlinBuiltIns;
 import java.util.Set;
 
 import static org.jetbrains.jet.lang.diagnostics.Errors.*;
-import static org.jetbrains.jet.lang.resolve.constants.ErrorValue.ErrorValueWithDiagnostic;
 
 public class CompileTimeConstantResolver {
     private final KotlinBuiltIns builtIns;
@@ -106,7 +106,7 @@ public class CompileTimeConstantResolver {
             @NotNull JetConstantExpression expression
     ) {
         if (value == null) {
-            return ErrorValue.create(INT_LITERAL_OUT_OF_RANGE.on(expression));
+            return createErrorValue(INT_LITERAL_OUT_OF_RANGE.on(expression));
         }
         if (noExpectedTypeOrError(expectedType)) {
             if (Integer.MIN_VALUE <= value && value <= Integer.MAX_VALUE) {
@@ -149,14 +149,14 @@ public class CompileTimeConstantResolver {
                 return getIntegerValue(value, longType, expression);
             }
             else {
-                return ErrorValue.create(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, "integer", expectedType));
+                return createErrorValue(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, "integer", expectedType));
             }
         }
 
         if (value != null && lowerBound <= value && value <= upperBound) {
             return create.apply(value);
         }
-        return ErrorValue.create(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, "integer", expectedType));
+        return createErrorValue(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, "integer", expectedType));
     }
 
     @Nullable
@@ -205,16 +205,16 @@ public class CompileTimeConstantResolver {
                 return new FloatValue(Float.parseFloat(text));
             }
             else {
-                return ErrorValue.create(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, "floating-point", expectedType));
+                return createErrorValue(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, "floating-point", expectedType));
             }
         }
         catch (NumberFormatException e) {
-            return ErrorValue.create(FLOAT_LITERAL_OUT_OF_RANGE.on(expression));
+            return createErrorValue(FLOAT_LITERAL_OUT_OF_RANGE.on(expression));
         }
     }
 
     @Nullable
-    private CompileTimeConstant<?> checkNativeType(
+    private static CompileTimeConstant<?> checkNativeType(
             JetType expectedType,
             String title,
             JetType nativeType,
@@ -223,7 +223,7 @@ public class CompileTimeConstantResolver {
         if (!noExpectedTypeOrError(expectedType)
             && !JetTypeChecker.INSTANCE.isSubtypeOf(nativeType, expectedType)) {
 
-            return ErrorValue.create(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, title, expectedType));
+            return createErrorValue(CONSTANT_EXPECTED_TYPE_MISMATCH.on(expression, title, expectedType));
         }
         return null;
     }
@@ -258,12 +258,12 @@ public class CompileTimeConstantResolver {
 
         // Strip the quotes
         if (text.length() < 2 || text.charAt(0) != '\'' || text.charAt(text.length() - 1) != '\'') {
-            return ErrorValue.create(INCORRECT_CHARACTER_LITERAL.on(expression));
+            return createErrorValue(INCORRECT_CHARACTER_LITERAL.on(expression));
         }
         text = text.substring(1, text.length() - 1); // now there're no quotes
 
         if (text.length() == 0) {
-            return ErrorValue.create(EMPTY_CHARACTER_LITERAL.on(expression));
+            return createErrorValue(EMPTY_CHARACTER_LITERAL.on(expression));
         }
 
         if (text.charAt(0) != '\\') {
@@ -271,7 +271,7 @@ public class CompileTimeConstantResolver {
             if (text.length() == 1) {
                 return new CharValue(text.charAt(0));
             }
-            return ErrorValue.create(TOO_MANY_CHARACTERS_IN_CHARACTER_LITERAL.on(expression, expression));
+            return createErrorValue(TOO_MANY_CHARACTERS_IN_CHARACTER_LITERAL.on(expression, expression));
         }
         return escapedStringToCharValue(text, expression);
     }
@@ -312,10 +312,8 @@ public class CompileTimeConstantResolver {
     }
 
     @NotNull
-    private static CompileTimeConstant<?> illegalEscape(
-            @NotNull JetElement expression
-    ) {
-        return ErrorValue.create(ILLEGAL_ESCAPE.on(expression, expression));
+    private static CompileTimeConstant<?> illegalEscape(@NotNull JetElement expression) {
+        return createErrorValue(ILLEGAL_ESCAPE.on(expression, expression));
     }
 
     @Nullable
@@ -342,16 +340,43 @@ public class CompileTimeConstantResolver {
     }
 
     @NotNull
-    public CompileTimeConstant<?> getNullValue(
-            @NotNull JetConstantExpression expression, @NotNull JetType expectedType
-    ) {
+    public static CompileTimeConstant<?> getNullValue(@NotNull JetConstantExpression expression, @NotNull JetType expectedType) {
         if (noExpectedTypeOrError(expectedType) || expectedType.isNullable()) {
             return NullValue.NULL;
         }
-        return ErrorValue.create(NULL_FOR_NONNULL_TYPE.on(expression, expectedType));
+        return createErrorValue(NULL_FOR_NONNULL_TYPE.on(expression, expectedType));
     }
 
     private static boolean noExpectedTypeOrError(JetType expectedType) {
         return TypeUtils.noExpectedType(expectedType) || expectedType.isError();
     }
+
+    @NotNull
+    private static ErrorValue createErrorValue(@NotNull Diagnostic diagnostic) {
+        return new ErrorValueWithDiagnostic(diagnostic);
+    }
+
+    public static class ErrorValueWithDiagnostic extends ErrorValue {
+        private final Diagnostic diagnostic;
+
+        public ErrorValueWithDiagnostic(@NotNull Diagnostic diagnostic) {
+            this.diagnostic = diagnostic;
+        }
+
+        @NotNull
+        public Diagnostic getDiagnostic() {
+            return diagnostic;
+        }
+
+        @NotNull
+        @Override
+        public JetType getType(@NotNull KotlinBuiltIns kotlinBuiltIns) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public String toString() {
+            return DefaultErrorMessages.RENDERER.render(diagnostic);
+        }
+    }
 }
diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/ErrorValue.java b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/ErrorValue.java
index 60f6817eb9a..e3eb182393b 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/ErrorValue.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/constants/ErrorValue.java
@@ -18,11 +18,9 @@ package org.jetbrains.jet.lang.resolve.constants;
 
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.descriptors.annotations.AnnotationArgumentVisitor;
-import org.jetbrains.jet.lang.diagnostics.Diagnostic;
-import org.jetbrains.jet.lang.diagnostics.rendering.DefaultErrorMessages;
 import org.jetbrains.jet.lang.types.ErrorUtils;
-import org.jetbrains.jet.lang.types.lang.KotlinBuiltIns;
 import org.jetbrains.jet.lang.types.JetType;
+import org.jetbrains.jet.lang.types.lang.KotlinBuiltIns;
 
 public abstract class ErrorValue implements CompileTimeConstant<Void> {
 
@@ -37,14 +35,11 @@ public abstract class ErrorValue implements CompileTimeConstant<Void> {
         return visitor.visitErrorValue(this, data);
     }
 
+    @NotNull
     public static ErrorValue create(@NotNull String message) {
         return new ErrorValueWithMessage(message);
     }
 
-    public static ErrorValue create(@NotNull Diagnostic diagnostic) {
-        return new ErrorValueWithDiagnostic(diagnostic);
-    }
-
     public static class ErrorValueWithMessage extends ErrorValue {
         private final String message;
 
@@ -67,27 +62,4 @@ public abstract class ErrorValue implements CompileTimeConstant<Void> {
             return getMessage();
         }
     }
-
-    public static class ErrorValueWithDiagnostic extends ErrorValue {
-        private final Diagnostic diagnostic;
-
-        public ErrorValueWithDiagnostic(@NotNull Diagnostic diagnostic) {
-            this.diagnostic = diagnostic;
-        }
-
-        public Diagnostic getDiagnostic() {
-            return diagnostic;
-        }
-
-        @NotNull
-        @Override
-        public JetType getType(@NotNull KotlinBuiltIns kotlinBuiltIns) {
-            throw new UnsupportedOperationException();
-        }
-
-        @Override
-        public String toString() {
-            return DefaultErrorMessages.RENDERER.render(diagnostic);
-        }
-    }
 }
diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/BasicExpressionTypingVisitor.java b/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/BasicExpressionTypingVisitor.java
index 5810bfda62c..2fa9a9fc115 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/BasicExpressionTypingVisitor.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/BasicExpressionTypingVisitor.java
@@ -70,7 +70,7 @@ import static org.jetbrains.jet.lang.resolve.BindingContext.*;
 import static org.jetbrains.jet.lang.resolve.DescriptorUtils.getStaticNestedClassesScope;
 import static org.jetbrains.jet.lang.resolve.calls.context.ContextDependency.DEPENDENT;
 import static org.jetbrains.jet.lang.resolve.calls.context.ContextDependency.INDEPENDENT;
-import static org.jetbrains.jet.lang.resolve.constants.ErrorValue.ErrorValueWithDiagnostic;
+import static org.jetbrains.jet.lang.resolve.constants.CompileTimeConstantResolver.ErrorValueWithDiagnostic;
 import static org.jetbrains.jet.lang.resolve.scopes.receivers.ReceiverValue.NO_RECEIVER;
 import static org.jetbrains.jet.lang.types.TypeUtils.NO_EXPECTED_TYPE;
 import static org.jetbrains.jet.lang.types.TypeUtils.noExpectedType;