Converted TipsManager to Kotlin

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

@@ -44,6 +44,7 @@ public class AutoCastUtils {
 
     private AutoCastUtils() {}
 
+    @NotNull
     public static List<JetType> getAutoCastVariants(
             @NotNull ReceiverValue receiverToCast,
             @NotNull ResolutionContext context
@@ -51,6 +52,7 @@ public class AutoCastUtils {
         return getAutoCastVariants(receiverToCast, context.trace.getBindingContext(), context.dataFlowInfo);
     }
 
+    @NotNull
     public static List<JetType> getAutoCastVariants(
             @NotNull ReceiverValue receiverToCast,
             @NotNull BindingContext bindingContext,

compiler/frontend/src/org/jetbrains/jet/lang/resolve/scopes/JetScopeUtils.java

@@ -36,6 +36,7 @@ import java.util.Set;
 public final class JetScopeUtils {
     private JetScopeUtils() {}
 
+    @NotNull
     public static List<ReceiverValue> getImplicitReceiversHierarchyValues(@NotNull JetScope scope) {
         Collection<ReceiverParameterDescriptor> hierarchy = scope.getImplicitReceiversHierarchy();
 
@@ -56,6 +57,7 @@ public final class JetScopeUtils {
      * @param scope Scope for query extensions.
      * @return extension descriptors.
      */
+    @NotNull
     public static Collection<CallableDescriptor> getAllExtensions(@NotNull JetScope scope) {
         Set<CallableDescriptor> result = Sets.newHashSet();
 

compiler/frontend/src/org/jetbrains/jet/lang/resolve/scopes/receivers/Qualifier.kt

@@ -37,19 +37,19 @@ import kotlin.properties.Delegates
 
 public trait Qualifier {
 
-    val expression: JetExpression
+    public val expression: JetExpression
 
-    val packageView: PackageViewDescriptor?
+    public val packageView: PackageViewDescriptor?
 
-    val classifier: ClassifierDescriptor?
+    public val classifier: ClassifierDescriptor?
 
-    val name: Name
+    public val name: Name
         get() = classifier?.getName() ?: packageView!!.getName()
 
     // package, classifier or class object descriptor
-    val resultingDescriptor: DeclarationDescriptor
+    public val resultingDescriptor: DeclarationDescriptor
 
-    val scope: JetScope
+    public val scope: JetScope
 }
 
 class QualifierReceiver (