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

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

@@ -1,3 +1,7 @@
+fun run(arg1: A, arg2: String, funRef:A.(String) -> Unit): Unit {
+    return arg1.funRef(arg2)
+}
+
 class A {
     var result = "Fail"
 }
@@ -10,5 +14,12 @@ fun box(): String {
     val a = A()
     val x = A::foo
     x(a, "OK")
-    return a.result
+
+    if (a.result != "OK") return a.result
+
+    val a1 = A()
+    run(a1, "OK", A::foo)
+    if (a1.result != "OK") return a1.result
+
+    return "OK"
 }