[FIR] Reproduce KT-64891

^KT-64891

compiler/testData/diagnostics/tests/fixExpressionsInQaSelectors.fir.kt

@@ -0,0 +1,16 @@
+// ISSUE: KT-64891
+
+val b: Int.() -> Int = { 10 }
+val Int.b: () -> String get() = { "B" }
+
+fun main() {
+    5.(b)().<!UNRESOLVED_REFERENCE!>inv<!>() // should be Int
+    5.b().length  // should be String
+}
+
+fun <T> id(it: T) = it
+
+fun rain() {
+    5.(b)().<!UNRESOLVED_REFERENCE!>inv<!>()
+    5.(id(b))().inv() // should be consistent
+}

compiler/testData/diagnostics/tests/fixExpressionsInQaSelectors.kt

@@ -0,0 +1,16 @@
+// ISSUE: KT-64891
+
+val b: Int.() -> Int = { 10 }
+val Int.b: () -> String get() = { "B" }
+
+fun main() {
+    5.(b)().inv() // should be Int
+    5.b().length  // should be String
+}
+
+fun <T> id(it: T) = it
+
+fun rain() {
+    5.(b)().inv()
+    5.(id(b))().inv() // should be consistent
+}