[kotlin tests] mute org.jetbrains.kotlin.idea.k2.inspections.tests.K2UnusedSymbolHighlightingTestGenerated.Uncategorized.testJsExport

it was muted on TC, but now it's location is changed a bit

GitOrigin-RevId: cb2b28ffe96bba84c7fd00a45ec9f0a1d7685185

plugins/kotlin/idea/tests/testData/inspectionsLocal/unusedSymbol/jsExport.kt

@@ -12,3 +12,5 @@ fun hello() {
 fun <caret>hello(greeting: String) {
     println("$greeting $name!")
 }
+
+// IGNORE_K2