KT-4119: Back-end (JVM) Internal error on code with local extensions

#KT-4119 Fixed

compiler/testData/codegen/box/functions/localFunctions/kt4119.kt

@@ -0,0 +1,12 @@
+fun foo(f: (Int?) -> Int): Int {
+    return f(0)
+}
+
+fun box() : String {
+    fun Int?.plus(a:Int) : Int = a!! + 2
+
+    if (foo { it + 1} != 3) return "Fail 1"
+    if (foo { it plus 1} != 3) return "Fail 2"
+
+    return "OK"
+}