Minor. refactoring in Qualifier.

compiler/frontend/src/org/jetbrains/kotlin/resolve/QualifiedExpressionResolveUtil.kt

@@ -21,10 +21,7 @@ import org.jetbrains.kotlin.diagnostics.Errors
 import org.jetbrains.kotlin.resolve.descriptorUtil.classValueDescriptor
 import org.jetbrains.kotlin.resolve.descriptorUtil.classValueTypeDescriptor
 import org.jetbrains.kotlin.resolve.descriptorUtil.hasCompanionObject
-import org.jetbrains.kotlin.resolve.scopes.receivers.ClassQualifier
+import org.jetbrains.kotlin.resolve.scopes.receivers.*
-import org.jetbrains.kotlin.resolve.scopes.receivers.PackageQualifier
-import org.jetbrains.kotlin.resolve.scopes.receivers.Qualifier
-import org.jetbrains.kotlin.resolve.scopes.receivers.TypeParameterQualifier
 import org.jetbrains.kotlin.resolve.validation.SymbolUsageValidator
 import org.jetbrains.kotlin.types.expressions.ExpressionTypingContext
 

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

@@ -27,42 +27,44 @@ import org.jetbrains.kotlin.types.KotlinType
 import java.util.*
 
 interface QualifierReceiver : Receiver {
+    val descriptor: DeclarationDescriptor
+
     val staticScope: MemberScope
 
     val classValueReceiver: ReceiverValue?
 }
 
-abstract class Qualifier(val referenceExpression: KtSimpleNameExpression) : QualifierReceiver {
+interface Qualifier : QualifierReceiver {
-    val expression: KtExpression
+    val referenceExpression: KtSimpleNameExpression
-        get() = referenceExpression.getTopmostParentQualifiedExpressionForSelector() ?: referenceExpression
-
-    abstract val descriptor: DeclarationDescriptor
 }
 
+val Qualifier.expression: KtExpression
+    get() = referenceExpression.getTopmostParentQualifiedExpressionForSelector() ?: referenceExpression
+
 class PackageQualifier(
-        referenceExpression: KtSimpleNameExpression,
+        override val referenceExpression: KtSimpleNameExpression,
         override val descriptor: PackageViewDescriptor
-) : Qualifier(referenceExpression) {
+) : Qualifier {
-
-    override val staticScope: MemberScope get() = descriptor.memberScope
-
     override val classValueReceiver: ReceiverValue? get() = null
+    override val staticScope: MemberScope get() = descriptor.memberScope
 
     override fun toString() = "Package{$descriptor}"
 }
 
 class TypeParameterQualifier(
-        referenceExpression: KtSimpleNameExpression,
+        override val referenceExpression: KtSimpleNameExpression,
         override val descriptor: TypeParameterDescriptor
-) : Qualifier(referenceExpression) {
+) : Qualifier {
-    override val staticScope: MemberScope get() = MemberScope.Empty
     override val classValueReceiver: ReceiverValue? get() = null
+    override val staticScope: MemberScope get() = MemberScope.Empty
+
+    override fun toString() = "TypeParameter{$descriptor}"
 }
 
 class ClassQualifier(
-        referenceExpression: KtSimpleNameExpression,
+        override val referenceExpression: KtSimpleNameExpression,
         override val descriptor: ClassDescriptor
-) : Qualifier(referenceExpression) {
+) : Qualifier {
     override val classValueReceiver: ClassValueReceiver? = descriptor.classValueType?.let {
         ClassValueReceiver(this, it)
     }

idea/src/org/jetbrains/kotlin/idea/quickfix/createFromUsage/createCallable/CreateCallableFromCallActionFactory.kt

@@ -40,10 +40,7 @@ import org.jetbrains.kotlin.resolve.calls.callUtil.getCall
 import org.jetbrains.kotlin.resolve.calls.callUtil.getResolvedCall
 import org.jetbrains.kotlin.resolve.descriptorUtil.builtIns
 import org.jetbrains.kotlin.resolve.descriptorUtil.classValueType
-import org.jetbrains.kotlin.resolve.scopes.receivers.ClassQualifier
+import org.jetbrains.kotlin.resolve.scopes.receivers.*
-import org.jetbrains.kotlin.resolve.scopes.receivers.Qualifier
-import org.jetbrains.kotlin.resolve.scopes.receivers.Receiver
-import org.jetbrains.kotlin.resolve.scopes.receivers.ReceiverValue
 import org.jetbrains.kotlin.resolve.source.getPsi
 import org.jetbrains.kotlin.types.Variance
 import org.jetbrains.kotlin.types.typeUtil.isSubtypeOf