Fix compiler tests

compiler/testData/diagnostics/tests/controlFlowAnalysis/deadCode/deadCodeInInnerExpressions.kt

@@ -1,12 +1,12 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 
 fun testCompound() {
-    fun Nothing.get(i: Int) {}
+    operator fun Nothing.get(i: Int) {}
     todo()<!UNREACHABLE_CODE!><!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>[12]<!>
 }
 
 fun testCompound1() {
-    fun Int.times(s: String): Array<String> = throw Exception()
+    operator fun Int.times(s: String): Array<String> = throw Exception()
     <!UNREACHABLE_CODE!>(<!>todo() <!UNREACHABLE_CODE!>* "")[1]<!>
 }