Remove assertion on sorted ranges: it could be empty if lambda doesn't contain any linenumber

#KT-35101 Fixed

compiler/testData/codegen/boxInline/callableReference/kt35101.kt

@@ -0,0 +1,14 @@
+// FILE: 1.kt
+package test
+
+inline fun <T, R> T.let2(block: (T) -> R): R {
+    return block(this)
+}
+
+// FILE: 2.kt
+import test.*
+
+fun box(): String {
+    val result = true.let2(Boolean::not)
+    return if (!result) "OK" else "fail"
+}