From 74ecae7f6de5e786e45c81359ebc5fc18dbdef2c Mon Sep 17 00:00:00 2001
From: "Denis.Zharkov" <denis.zharkov@jetbrains.com>
Date: Wed, 24 Feb 2021 15:23:55 +0300
Subject: [PATCH] IR: Optimize IrSimpleFunction::collectRealOverrides

---
 .../src/org/jetbrains/kotlin/ir/util/IrFakeOverrideUtils.kt  | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/IrFakeOverrideUtils.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/IrFakeOverrideUtils.kt
index 4e60955a217..5e91527efff 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/IrFakeOverrideUtils.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/IrFakeOverrideUtils.kt
@@ -36,6 +36,7 @@ fun IrSimpleFunction.collectRealOverrides(
 ): Set<IrSimpleFunction> {
     if (isReal && !toSkip(this)) return setOf(this)
 
+    @Suppress("UNCHECKED_CAST")
     return this.overriddenSymbols
         .map { it.owner }
         .collectAndFilterRealOverrides(
@@ -44,9 +45,7 @@ fun IrSimpleFunction.collectRealOverrides(
                 toSkip(it)
             },
             filter
-        )
-        .map { it as IrSimpleFunction }
-        .toSet()
+        ) as Set<IrSimpleFunction>
 }
 
 fun Collection<IrOverridableMember>.collectAndFilterRealOverrides(