Fix raw FIR building with parenthesized expression as selector

compiler/visualizer/testData/rawBuilder/expressions/inBrackets.kt

@@ -0,0 +1,14 @@
+// FIR_IGNORE
+fun test(e: Int.() -> String) {
+//      String
+//      │   Int
+//      │   │ fun Int.invoke(): String
+//      │   │ │
+    val s = 3.e()
+//      String
+//      │    Int
+//      │    │ fun Int.invoke(): String
+//      │    │ │test.e: Int.() -> String
+//      │    │ ││
+    val ss = 3.(e)()
+}