ClassDescriptor.getConstructor returns Collection

compiler/frontend/src/org/jetbrains/jet/lang/descriptors/ClassDescriptor.java

@@ -24,6 +24,7 @@ import org.jetbrains.jet.lang.types.JetType;
 import org.jetbrains.jet.lang.types.TypeProjection;
 import org.jetbrains.jet.lang.types.TypeSubstitutor;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.Set;
 
@@ -39,7 +40,7 @@ public interface ClassDescriptor extends ClassifierDescriptor, MemberDescriptor,
     JetScope getUnsubstitutedInnerClassesScope();
 
     @NotNull
-    Set<ConstructorDescriptor> getConstructors();
+    Collection<ConstructorDescriptor> getConstructors();
 
     @Override
     @NotNull

compiler/frontend/src/org/jetbrains/jet/lang/descriptors/ClassDescriptorImpl.java

@@ -111,7 +111,7 @@ public class ClassDescriptorImpl extends DeclarationDescriptorImpl implements Cl
 
     @NotNull
     @Override
-    public Set<ConstructorDescriptor> getConstructors() {
+    public Collection<ConstructorDescriptor> getConstructors() {
         return constructors;
     }
 

compiler/frontend/src/org/jetbrains/jet/lang/descriptors/LazySubstitutingClassDescriptor.java

@@ -113,8 +113,8 @@ public class LazySubstitutingClassDescriptor implements ClassDescriptor {
 
     @NotNull
     @Override
-    public Set<ConstructorDescriptor> getConstructors() {
-        Set<ConstructorDescriptor> r = Sets.newHashSet();
+    public Collection<ConstructorDescriptor> getConstructors() {
+        Collection<ConstructorDescriptor> r = Lists.newArrayList();
         for (ConstructorDescriptor constructor : original.getConstructors()) {
             r.add((ConstructorDescriptor) constructor.substitute(getSubstitutor()));
         }

compiler/frontend/src/org/jetbrains/jet/lang/descriptors/MutableClassDescriptorLite.java

@@ -147,7 +147,7 @@ public class MutableClassDescriptorLite extends ClassDescriptorBase
 
     @NotNull
     @Override
-    public Set<ConstructorDescriptor> getConstructors() {
+    public Collection<ConstructorDescriptor> getConstructors() {
         return constructors;
     }
 

compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/CallResolver.java

@@ -188,7 +188,7 @@ public class CallResolver {
                 DeclarationDescriptor declarationDescriptor = constructedType.getConstructor().getDeclarationDescriptor();
                 if (declarationDescriptor instanceof ClassDescriptor) {
                     ClassDescriptor classDescriptor = (ClassDescriptor) declarationDescriptor;
-                    Set<ConstructorDescriptor> constructors = classDescriptor.getConstructors();
+                    Collection<ConstructorDescriptor> constructors = classDescriptor.getConstructors();
                     if (constructors.isEmpty()) {
                         context.trace.report(NO_CONSTRUCTOR.on(reportAbsenceOn));
                         return checkArgumentTypesAndFail(context);
@@ -213,7 +213,7 @@ public class CallResolver {
                 assert containingDeclaration instanceof ClassDescriptor;
                 ClassDescriptor classDescriptor = (ClassDescriptor) containingDeclaration;
 
-                Set<ConstructorDescriptor> constructors = classDescriptor.getConstructors();
+                Collection<ConstructorDescriptor> constructors = classDescriptor.getConstructors();
                 if (constructors.isEmpty()) {
                     context.trace.report(NO_CONSTRUCTOR.on(reportAbsenceOn));
                     return checkArgumentTypesAndFail(context);

compiler/frontend/src/org/jetbrains/jet/lang/resolve/lazy/LazyClassDescriptor.java

@@ -136,7 +136,7 @@ public class LazyClassDescriptor extends ClassDescriptorBase implements ClassDes
 
     @NotNull
     @Override
-    public Set<ConstructorDescriptor> getConstructors() {
+    public Collection<ConstructorDescriptor> getConstructors() {
         return unsubstitutedMemberScope.getConstructors();
     }
 

compiler/frontend/src/org/jetbrains/jet/lang/types/ErrorUtils.java

@@ -121,7 +121,7 @@ public class ErrorUtils {
     private static final ClassDescriptorImpl ERROR_CLASS = new ClassDescriptorImpl(ERROR_MODULE, Collections.<AnnotationDescriptor>emptyList(), Name.special("<ERROR CLASS>")) {
         @NotNull
         @Override
-        public Set<ConstructorDescriptor> getConstructors() {
+        public Collection<ConstructorDescriptor> getConstructors() {
             return ERROR_CONSTRUCTOR_GROUP;
         }