From da0e2c276f01007c8bb4cff9b0a2cb19016dcfea Mon Sep 17 00:00:00 2001
From: Tamas Vajk <tamasvajk@github.com>
Date: Thu, 18 Nov 2021 12:37:04 +0100
Subject: [PATCH] Add comment explaining why the annotation is needed

---
 .../src/main/kotlin/KotlinExtractorExtension.kt                 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt b/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt
index 557e828363d..422ac571c5f 100644
--- a/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt
+++ b/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt
@@ -242,7 +242,7 @@ class KotlinSourceFileExtractor(
         CommentExtractor(this).extract()
     }
 
-  @OptIn(kotlin.ExperimentalStdlibApi::class)
+  @OptIn(kotlin.ExperimentalStdlibApi::class) // Annotation required by kotlin versions < 1.5
   fun extractFileClass(f: IrFile): Label<out DbClass> {
       val fileName = f.fileEntry.name
       val pkg = f.fqName.asString()