Move util method from JavaDescriptorResolver to DescriptorResolverUtils

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

@@ -120,4 +120,10 @@ public final class DescriptorResolverUtils {
             scopeData.setNamedMembersMap(JavaDescriptorResolverHelper.getNamedMembers(scopeData));
         }
     }
+
+    public static void checkPsiClassIsNotJet(PsiClass psiClass) {
+        if (psiClass instanceof JetJavaMirrorMarker) {
+            throw new IllegalStateException("trying to resolve fake jet PsiClass as regular PsiClass: " + psiClass.getQualifiedName());
+        }
+    }
 }

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

@@ -76,7 +76,7 @@ public class JavaDescriptorResolveData {
                 boolean staticMembers,
                 @NotNull ClassOrNamespaceDescriptor descriptor
         ) {
-            JavaDescriptorResolver.checkPsiClassIsNotJet(psiClass);
+            DescriptorResolverUtils.checkPsiClassIsNotJet(psiClass);
 
             this.psiClass = psiClass;
             this.psiPackage = psiPackage;

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

@@ -197,13 +197,6 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
         return namespaceDescriptorCacheByFqn;
     }
 
-    public static void checkPsiClassIsNotJet(PsiClass psiClass) {
-        if (psiClass instanceof JetJavaMirrorMarker) {
-            throw new IllegalStateException("trying to resolve fake jet PsiClass as regular PsiClass: " + psiClass.getQualifiedName());
-        }
-    }
-
-
     @Nullable
     public NamespaceDescriptor resolveNamespace(@NotNull FqName qualifiedName, @NotNull DescriptorSearchRule searchRule) {
         return namespaceResolver.resolveNamespace(qualifiedName, searchRule);

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/ClassResolver.java

@@ -142,7 +142,7 @@ public class ClassResolver {
             throw new IllegalStateException(qualifiedName);
         }
 
-        JavaDescriptorResolver.checkPsiClassIsNotJet(psiClass);
+        DescriptorResolverUtils.checkPsiClassIsNotJet(psiClass);
 
         Name name = Name.identifier(psiClass.getName());
         JetClassAnnotation jetClassAnnotation = JetClassAnnotation.get(psiClass);
@@ -212,7 +212,7 @@ public class ClassResolver {
             @NotNull ClassDescriptor containing,
             @NotNull PsiClass psiClass
     ) {
-        JavaDescriptorResolver.checkPsiClassIsNotJet(psiClass);
+        DescriptorResolverUtils.checkPsiClassIsNotJet(psiClass);
 
         if (psiClass.isEnum()) {
             return createClassObjectDescriptorForEnum(containing, psiClass);