Remove duplicate tests from JS compiler test set. Merge chages to common compiler tests

compiler/testData/codegen/box/callableReference/function/topLevelFromTopLevelStringNoArgs.kt

@@ -2,5 +2,12 @@ fun foo() = "OK"
 
 fun box(): String {
     val x = ::foo
-    return x()
+
+    var r = x()
+    if (r != "OK") return r
+
+    r = run(::foo)
+    if (r != "OK") return r
+
+    return "OK"
 }