[FIR] Add parameter flattenArrays to FirExpression.unwrapAndFlattenArgument

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/annotations/firAnnotationUtils.kt

@@ -144,7 +144,7 @@ private fun <T> FirAnnotation.findFromRawArguments(expectedEnumClass: ClassId, t
 
     if (this@findFromRawArguments is FirAnnotationCall) {
         for (arg in argumentList.arguments) {
-            arg.unwrapAndFlattenArgument().forEach(::addIfMatching)
+            arg.unwrapAndFlattenArgument(flattenArrays = true).forEach(::addIfMatching)
         }
     }
 }