[IR] dumpKotlinLike: add testdata for FIR tests

compiler/testData/ir/irText/expressions/variableAsFunctionCallWithGenerics.fir.kt.txt

@@ -0,0 +1,23 @@
+val <T : CharSequence> T.gk: Function0<T>
+  get(): Function0<T> {
+    return local fun <anonymous>(): T {
+      return <this>
+    }
+
+  }
+
+fun testGeneric1(x: String): T {
+  return x.<get-gk><String>().invoke()
+}
+
+val <T : Any?> T.kt26531Val: Function0<T>
+  get(): Function0<T> {
+    return local fun <no name provided>(): T {
+      return <this>
+    }
+
+  }
+
+fun kt26531(): T {
+  return 7.<get-kt26531Val><Int>().invoke()
+}