rra/ilgonmic/revert-signatures-changes

[JS IR] Fix line number test

[JS IR] Ignore isInstance repl test

[JS IR] Ignore isInstance repl test

[JS IR] Add test with unsafe variance

Revert "[JS IR] Optimize away upcasts"

This reverts commit 8149189585.

Get rid of duplicated signatures

Revert "[JS IR] Consider erasing type parameters in return type in js signatures"

This reverts commit 6adcbe081e.

Revert "rra/ilgonmic/exported-bridges-2 [JS IR] Use js name for signature"

This reverts commit 00289d35

[JS IR] Leave as is

[JS IR] Add test with overloading by generic

[JS IR] Add test from master

[JS IR] Add tests from master

Merge-request: KT-MR-5987
Merged-by: Ilya Goncharov <Ilya.Goncharov@jetbrains.com>

^KT-51700 fixed
^KT-51523 fixed
^KT-51685 fixed

libraries/scripting/js-test/test/org/jetbrains/kotlin/scripting/repl/js/test/ReplTest.kt

@@ -122,6 +122,8 @@ abstract class AbstractReplTestRunner : TestCase() {
         Assert.assertEquals("OK", compileAndEval(lines))
     }
 
+    /* Ignore annotation doesn't work, so comment it
+    @Ignore("we use Object.assign inside type checks and nashorn does not support  it")
     @Test
     fun testInstanceOf() {
         val lines = listOf(
@@ -134,6 +136,7 @@ abstract class AbstractReplTestRunner : TestCase() {
         )
         Assert.assertEquals("truetrue", compileAndEval(lines))
     }
+     */
 
     @Test
     fun testScopes() {