Sometimes PsiClass'es are loaded twice for same class

This patch is workaround to fix tests.

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

@@ -1220,6 +1220,41 @@ public class JavaDescriptorResolver {
             getAllTypeParameterDescriptorInitialization(supr, dest);
         }
     }
+    
+    private static boolean equal(@NotNull PsiClass c1, @NotNull PsiClass c2) {
+        return c1.getQualifiedName().equals(c2.getQualifiedName());
+    }
+    
+    private static boolean equal(@NotNull PsiMethod m1, @NotNull PsiMethod m2) {
+        // TODO dummy
+        return m1.getName().equals(m2.getName()) && equal(m1.getContainingClass(), m2.getContainingClass());
+    }
+
+    private static boolean equal(@NotNull PsiTypeParameterListOwner o1, @NotNull PsiTypeParameterListOwner o2) {
+        if (o1 == o2) {
+            return true;
+        }
+        if (o1 instanceof PsiClass && o2 instanceof PsiClass) {
+            return equal((PsiClass) o1, (PsiClass) o2);
+        }
+        if (o1 instanceof PsiMethod && o2 instanceof PsiMethod) {
+            return equal((PsiMethod) o1, (PsiMethod) o2);
+        }
+        if ((o1 instanceof PsiClass || o1 instanceof PsiMethod) && (o2 instanceof PsiClass || o2 instanceof PsiMethod)) {
+            return false;
+        }
+        throw new IllegalStateException(o1.getClass() + ", " + o2.getClass());
+    }
+    
+    public static boolean equal(@NotNull PsiTypeParameter p1, @NotNull PsiTypeParameter p2) {
+        if (p1 == p2) {
+            return true;
+        }
+        if (p1.getIndex() != p2.getIndex()) {
+            return false;
+        }
+        return equal(p1.getOwner(), p2.getOwner());
+    }
 
     @Nullable
     private FunctionDescriptor resolveMethodToFunctionDescriptor(ClassOrNamespaceDescriptor owner, final PsiClass psiClass, TypeSubstitutor typeSubstitutorForGenericSuperclasses, final PsiMethodWrapper method) {
@@ -1320,12 +1355,12 @@ public class JavaDescriptorResolver {
             @Override
             public TypeParameterDescriptor getTypeVariable(@NotNull PsiTypeParameter psiTypeParameter) {
                 for (TypeParameterDescriptorInitialization typeParameter : methodTypeParametersInitialization) {
-                    if (typeParameter.psiTypeParameter == psiTypeParameter) {
+                    if (equal(typeParameter.psiTypeParameter, psiTypeParameter)) {
                         return typeParameter.descriptor;
                     }
                 }
                 for (TypeParameterDescriptorInitialization typeParameter : classTypeParameterDescriptorsInitialization) {
-                    if (typeParameter.psiTypeParameter == psiTypeParameter) {
+                    if (equal(typeParameter.psiTypeParameter, psiTypeParameter)) {
                         return typeParameter.descriptor;
                     }
                 }

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

@@ -26,7 +26,7 @@ public class TypeVariableByPsiResolverImpl implements TypeVariableByPsiResolver
     @Override
     public TypeParameterDescriptor getTypeVariable(@NotNull PsiTypeParameter psiTypeParameter) {
         for (JavaDescriptorResolver.TypeParameterDescriptorInitialization typeParameter : typeParameters) {
-            if (typeParameter.psiTypeParameter == psiTypeParameter) {
+            if (JavaDescriptorResolver.equal(typeParameter.psiTypeParameter, psiTypeParameter)) {
                 return typeParameter.descriptor;
             }
         }