Revert "Add method for getting all classifiers with given name from the scope"

This reverts commit 97759f5bb7.

core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/lazy/descriptors/LazyJavaMemberScope.kt

@@ -272,8 +272,6 @@ public abstract class LazyJavaMemberScope(
     override fun getLocalVariable(name: Name): VariableDescriptor? = null
     override fun getDeclarationsByLabel(labelName: LabelName) = listOf<DeclarationDescriptor>()
 
-    override fun getClassifiers(name: Name) = emptyOrSingletonList(getClassifier(name))
-
     override fun getOwnDeclaredDescriptors() = getAllDescriptors()
     override fun getAllDescriptors() = allDescriptors()
 

core/descriptors/src/org/jetbrains/jet/lang/resolve/scopes/AbstractScopeAdapter.java

@@ -55,12 +55,6 @@ public abstract class AbstractScopeAdapter implements JetScope {
         return getWorkerScope().getClassifier(name);
     }
 
-    @NotNull
-    @Override
-    public Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name) {
-        return getWorkerScope().getClassifiers(name);
-    }
-
     @NotNull
     @Override
     public Collection<VariableDescriptor> getProperties(@NotNull Name name) {

core/descriptors/src/org/jetbrains/jet/lang/resolve/scopes/ChainedScope.java

@@ -51,12 +51,6 @@ public class ChainedScope implements JetScope {
         return getFirstMatch(scopeChain, name, CLASSIFIER_DESCRIPTOR_SCOPE_SELECTOR);
     }
 
-    @NotNull
-    @Override
-    public Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name) {
-        return getFromAllScopes(scopeChain, name, NAMED_CLASSIFIERS_SCOPE_SELECTOR);
-    }
-
     @Override
     public PackageViewDescriptor getPackage(@NotNull Name name) {
         return getFirstMatch(scopeChain, name, PACKAGE_SCOPE_SELECTOR);

core/descriptors/src/org/jetbrains/jet/lang/resolve/scopes/FilteringScope.java

@@ -66,12 +66,6 @@ public class FilteringScope implements JetScope {
         return filterDescriptor(workerScope.getClassifier(name));
     }
 
-    @NotNull
-    @Override
-    public Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name) {
-        return Collections2.filter(workerScope.getClassifiers(name), predicate);
-    }
-
     @NotNull
     @Override
     public Collection<VariableDescriptor> getProperties(@NotNull Name name) {

core/descriptors/src/org/jetbrains/jet/lang/resolve/scopes/JetScope.java

@@ -53,10 +53,6 @@ public interface JetScope {
     @Nullable
     ClassifierDescriptor getClassifier(@NotNull Name name);
 
-    @NotNull
-    @ReadOnly
-    Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name);
-
     @Nullable
     PackageViewDescriptor getPackage(@NotNull Name name);
 

core/descriptors/src/org/jetbrains/jet/lang/resolve/scopes/JetScopeImpl.java

@@ -34,12 +34,6 @@ public abstract class JetScopeImpl implements JetScope {
         return null;
     }
 
-    @NotNull
-    @Override
-    public Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name) {
-        return Collections.emptySet();
-    }
-
     @NotNull
     @Override
     public Collection<VariableDescriptor> getProperties(@NotNull Name name) {

core/descriptors/src/org/jetbrains/jet/lang/resolve/scopes/JetScopeSelectorUtil.java

@@ -112,15 +112,6 @@ public class JetScopeSelectorUtil {
                 }
             };
 
-    public static final ScopeByNameMultiSelector<ClassifierDescriptor> NAMED_CLASSIFIERS_SCOPE_SELECTOR =
-            new ScopeByNameMultiSelector<ClassifierDescriptor>() {
-                @NotNull
-                @Override
-                public Collection<ClassifierDescriptor> get(@NotNull JetScope scope, @NotNull Name name) {
-                    return scope.getClassifiers(name);
-                }
-            };
-
     public static final ScopeDescriptorSelector<DeclarationDescriptor> ALL_DESCRIPTORS_SCOPE_SELECTOR =
             new ScopeDescriptorSelector<DeclarationDescriptor>() {
                 @NotNull

core/descriptors/src/org/jetbrains/jet/lang/resolve/scopes/SubstitutingScope.java

@@ -98,12 +98,6 @@ public class SubstitutingScope implements JetScope {
         return substitute(workerScope.getClassifier(name));
     }
 
-    @NotNull
-    @Override
-    public Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name) {
-        return substitute(workerScope.getClassifiers(name));
-    }
-
     @NotNull
     @Override
     public Collection<FunctionDescriptor> getFunctions(@NotNull Name name) {

core/descriptors/src/org/jetbrains/jet/lang/types/ErrorUtils.java

@@ -85,12 +85,6 @@ public class ErrorUtils {
             return ERROR_CLASS;
         }
 
-        @NotNull
-        @Override
-        public Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name) {
-            return ERROR_CLASSIFIER_GROUP;
-        }
-
         @NotNull
         @Override
         public Set<VariableDescriptor> getProperties(@NotNull Name name) {
@@ -167,12 +161,6 @@ public class ErrorUtils {
             throw new IllegalStateException();
         }
 
-        @NotNull
-        @Override
-        public Collection<ClassifierDescriptor> getClassifiers(@NotNull Name name) {
-            throw new IllegalStateException();
-        }
-
         @Nullable
         @Override
         public PackageViewDescriptor getPackage(@NotNull Name name) {
@@ -266,7 +254,6 @@ public class ErrorUtils {
             ERROR_PROPERTY_TYPE,
             CallableMemberDescriptor.Kind.DECLARATION);
     private static final Set<VariableDescriptor> ERROR_PROPERTY_GROUP = Collections.singleton(ERROR_PROPERTY);
-    private static final Set<ClassifierDescriptor> ERROR_CLASSIFIER_GROUP = Collections.<ClassifierDescriptor>singleton(ERROR_CLASS);
 
     @NotNull
     private static SimpleFunctionDescriptor createErrorFunction(@NotNull ErrorScope ownerScope) {