[IR] dumpKotlinLike: add testdata for FIR tests

compiler/testData/ir/irText/declarations/provideDelegate/memberExtension.fir.kt.txt

@@ -0,0 +1,39 @@
+object Host {
+  private constructor() /* primary */ {
+    super/*Any*/()
+    /* <init>() */
+
+  }
+
+  class StringDelegate {
+    constructor(s: String) /* primary */ {
+      super/*Any*/()
+      /* <init>() */
+
+    }
+
+    val s: String
+      field = s
+      get
+
+    operator fun getValue(receiver: String, p: Any): String {
+      return receiver.plus(other = <this>.<get-s>())
+    }
+
+  }
+
+  operator fun String.provideDelegate(host: Any?, p: Any): StringDelegate {
+    return StringDelegate(s = <this>)
+  }
+
+  val String.plusK: String /* by */
+    field = (<this>, "K").provideDelegate(host = <this>, p = Host::plusK)
+    get(): String {
+      return <this>.#plusK$delegate.getValue(receiver = <this>, p = Host::plusK)
+    }
+
+  val ok: String
+    field = (<this>, "O").<get-plusK>()
+    get
+
+}