Don't duplicate UAST parent calculation logic

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/declarations/KotlinUAnnotation.kt

@@ -13,10 +13,8 @@ import org.jetbrains.uast.*
 
 class KotlinUAnnotation(
         override val psi: KtAnnotationEntry,
-        private val givenParent: UElement?
-) : UAnnotation {
-    override val uastParent: UElement? by lz { convertParent(givenParent) }
-
+        givenParent: UElement?
+) : KotlinAbstractUElement(givenParent), UAnnotation {
     private val resolvedAnnotation: AnnotationDescriptor? by lz { psi.analyze()[BindingContext.ANNOTATION, psi] }
 
     private val resolvedCall: ResolvedCall<*>? by lz { psi.getResolvedCall(psi.analyze()) }

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/declarations/KotlinUImportStatement.kt

@@ -28,10 +28,8 @@ import org.jetbrains.uast.USimpleNameReferenceExpression
 
 class KotlinUImportStatement(
         override val psi: KtImportDirective,
-        private val givenParent: UElement?
-) : UImportStatement {
-    override val uastParent: UElement? by lz { convertParent(givenParent) }
-
+        givenParent: UElement?
+) : KotlinAbstractUElement(givenParent), UImportStatement {
     override val isOnDemand: Boolean
         get() = psi.isAllUnder
 

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/declarations/KotlinUMethod.kt

@@ -30,12 +30,10 @@ import org.jetbrains.uast.kotlin.*
 
 open class KotlinUMethod(
         psi: KtLightMethod,
-        private val givenParent: UElement?
-) : UAnnotationMethod, JavaUElementWithComments, PsiMethod by psi {
+        givenParent: UElement?
+) : KotlinAbstractUElement(givenParent), UAnnotationMethod, JavaUElementWithComments, PsiMethod by psi {
     override val psi: KtLightMethod = unwrap<UMethod, KtLightMethod>(psi)
 
-    override val uastParent: UElement? by lz { convertParent(givenParent) }
-
     override val uastDefaultValue by lz {
         val annotationParameter = psi.kotlinOrigin as? KtParameter ?: return@lz null
         val defaultValue = annotationParameter.defaultValue ?: return@lz null
@@ -85,8 +83,6 @@ open class KotlinUMethod(
 
     override fun equals(other: Any?) = other is KotlinUMethod && psi == other.psi
 
-    override fun hashCode() = psi.hashCode()
-
     companion object {
         fun create(psi: KtLightMethod, containingElement: UElement?) = KotlinUMethod(psi, containingElement)
     }

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/declarations/KotlinUVariable.kt

@@ -33,10 +33,8 @@ import org.jetbrains.uast.kotlin.psi.UastKotlinPsiParameter
 import org.jetbrains.uast.kotlin.psi.UastKotlinPsiVariable
 import org.jetbrains.uast.visitor.UastVisitor
 
-abstract class AbstractKotlinUVariable(private val givenParent: UElement?)
-    : PsiVariable, UVariable, KotlinUElementWithComments {
-
-    override val uastParent: UElement? by lz { convertParent(givenParent) }
+abstract class AbstractKotlinUVariable(givenParent: UElement?)
+    : KotlinAbstractUElement(givenParent), PsiVariable, UVariable, KotlinUElementWithComments {
 
     override val uastInitializer: UExpression?
         get() {
@@ -83,8 +81,6 @@ abstract class AbstractKotlinUVariable(private val givenParent: UElement?)
         get() = UIdentifier(nameIdentifier, this)
 
     override fun equals(other: Any?) = other is AbstractKotlinUVariable && psi == other.psi
-
-    override fun hashCode() = psi.hashCode()
 }
 
 class KotlinUVariable(

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/expressions/KotlinUNamedExpression.kt

@@ -23,17 +23,15 @@ import org.jetbrains.uast.*
 
 class KotlinUNamedExpression private constructor(
         override val name: String?,
-        private val givenParent: UElement?,
+        givenParent: UElement?,
         expressionProducer: (UElement) -> UExpression
-) : UNamedExpression {
+) : KotlinAbstractUElement(givenParent), UNamedExpression {
     override val expression: UExpression by lz { expressionProducer(this) }
 
     override val annotations: List<UAnnotation> = emptyList()
 
     override val psi: PsiElement? = null
 
-    override val uastParent: UElement? by lz { convertParent(givenParent) }
-
     companion object {
         internal fun create(name: String?, valueArgument: ValueArgument, uastParent: UElement?): UNamedExpression {
             val expression = valueArgument.getArgumentExpression()

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/expressions/LocalFunction.kt

@@ -12,19 +12,14 @@ import org.jetbrains.uast.kotlin.psi.UastKotlinPsiVariable
 private class KotlinLocalFunctionUVariable(
         val function: KtFunction,
         override val psi: PsiVariable,
-        private val givenParent: UElement?
-) : UVariable, PsiVariable by psi {
-    override val uastParent: UElement? by lz { convertParent(givenParent) }
-
+        givenParent: UElement?
+) : KotlinAbstractUElement(givenParent), UVariable, PsiVariable by psi {
     override val uastInitializer: UExpression? by lz {
         createLocalFunctionLambdaExpression(function, this)
     }
     override val typeReference: UTypeReferenceExpression? = null
     override val uastAnchor: UElement? = null
     override val annotations: List<UAnnotation> = emptyList()
-
-    override fun equals(other: Any?) = other is KotlinLocalFunctionUVariable && psi == other.psi
-    override fun hashCode() = psi.hashCode()
 }