[JS IR] Ignore unbound symbols in IC infrastructure

The IR linker is responsible for detecting unbound symbols,
 if it skips them for some reason, IC infrastructure must not fail
 with unbound symbols exceptions. Anyway, the IR validator
 verifies later if there are unbound symbols in
 reachable IR and generates the corresponding error.

^KT-56602 Fixed

js/js.tests/test/org/jetbrains/kotlin/incremental/AbstractInvalidationTest.kt

@@ -152,7 +152,7 @@ abstract class AbstractInvalidationTest(
             val expectedDTS: String?
         )
 
-        private fun setupTestStep(projStep: ProjectInfo.ProjectBuildStep, module: String, buildKlib: Boolean): TestStepInfo {
+        private fun setupTestStep(projStep: ProjectInfo.ProjectBuildStep, module: String): TestStepInfo {
             val projStepId = projStep.id
             val moduleTestDir = File(testDir, module)
             val moduleSourceDir = File(sourceDir, module)
@@ -172,7 +172,7 @@ abstract class AbstractInvalidationTest(
             val outputKlibFile = resolveModuleArtifact(module, buildDir)
 
             val friends = mutableListOf<File>()
-            if (buildKlib) {
+            if (moduleStep.rebuildKlib) {
                 val dependencies = mutableListOf(File(STDLIB_KLIB))
                 for (dep in moduleStep.dependencies) {
                     val klibFile = resolveModuleArtifact(dep.moduleName, buildDir)
@@ -313,7 +313,7 @@ abstract class AbstractInvalidationTest(
 
         fun execute() {
             for (projStep in projectInfo.steps) {
-                val testInfo = projStep.order.map { setupTestStep(projStep, it, true) }
+                val testInfo = projStep.order.map { setupTestStep(projStep, it) }
 
                 val mainModuleInfo = testInfo.last()
                 testInfo.find { it != mainModuleInfo && it.friends.isNotEmpty() }?.let {
@@ -341,7 +341,7 @@ abstract class AbstractInvalidationTest(
                     }
                 )
 
-                val removedModulesInfo = (projectInfo.modules - projStep.order.toSet()).map { setupTestStep(projStep, it, false) }
+                val removedModulesInfo = (projectInfo.modules - projStep.order.toSet()).map { setupTestStep(projStep, it) }
 
                 val icCaches = cacheUpdater.actualizeCaches()
                 verifyCacheUpdateStats(projStep.id, cacheUpdater.getDirtyFileLastStats(), testInfo + removedModulesInfo)