Added missing KtLambdaArgument to UElement conversion in KotlinUastLanguagePlugin

#KT-14470 Fixed

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt

@@ -186,6 +186,7 @@ internal object KotlinConverter {
             }
             is KtCatchClause -> el<UCatchClause> { KotlinUCatchClause(element, parent) }
             is KtExpression -> KotlinConverter.convertExpression(element, parent, requiredType)
+            is KtLambdaArgument -> KotlinConverter.convertExpression(element.getLambdaExpression(), parent, requiredType)
             else -> {
                 if (element is LeafPsiElement && element.elementType == KtTokens.IDENTIFIER) {
                     el<UIdentifier> { UIdentifier(element, parent) }

plugins/uast-kotlin/testData/lint/commitFragment.kt

@@ -23,5 +23,11 @@ class MainActivity : Activity() {
         //OK
         fragmentManager.beginTransaction().commit()
         fragmentManager.beginTransaction().add(null, "A").commit()
+
+        //OK KT-14470
+        Runnable {
+            val a = fragmentManager.beginTransaction()
+            a.commit()
+        }
     }
 }