From fceaf657292b23d2a851b809d10a78a4299dc921 Mon Sep 17 00:00:00 2001
From: Mikhail Zarechenskiy <mikhail.zarechenskiy@jetbrains.com>
Date: Wed, 20 May 2020 15:30:05 +0300
Subject: [PATCH] [NI] Don't compute conversions for definitely not SAM
 parameter

---
 .../kotlin/resolve/calls/components/samConversionUtils.kt      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/components/samConversionUtils.kt b/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/components/samConversionUtils.kt
index 01c9d4c7032..914dfa51306 100644
--- a/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/components/samConversionUtils.kt
+++ b/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/components/samConversionUtils.kt
@@ -36,6 +36,9 @@ object SamTypeConversions : ParameterTypeConversion {
             if (!samConversionOracle.shouldRunSamConversionForFunction(candidate.resolvedCall.candidateDescriptor)) return true
         }
 
+        val declarationDescriptor = expectedParameterType.constructor.declarationDescriptor
+        if (declarationDescriptor is ClassDescriptor && declarationDescriptor.isDefinitelyNotSamInterface) return true
+
         return false
     }