FIR/UAST: commonize throw expression

plugins/uast-kotlin-base/src/org/jetbrains/uast/kotlin/expressions/KotlinUThrowExpression.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.uast.kotlin
+
+import org.jetbrains.kotlin.psi.KtThrowExpression
+import org.jetbrains.uast.UElement
+import org.jetbrains.uast.UThrowExpression
+
+class KotlinUThrowExpression(
+    override val sourcePsi: KtThrowExpression,
+    givenParent: UElement?
+) : KotlinAbstractUExpression(givenParent), UThrowExpression, KotlinUElementWithType {
+    override val thrownExpression by lz {
+        baseResolveProviderService.baseKotlinConverter.convertOrEmpty(sourcePsi.thrownExpression, this)
+    }
+}