From 24804588219dff84c76abd94ba1257d194dde3e5 Mon Sep 17 00:00:00 2001
From: Andrew Casey <andrew.casey@microsoft.com>
Date: Mon, 27 Jul 2020 14:11:24 -0700
Subject: [PATCH] Reduce unnecessary error computation

...during overload resolution.  Based on a trace that was spending 30%
of a (very slow) overload resolution elaborating errors that were then
dropped.
---
 src/compiler/checker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index ba234e4981b..611166730eb 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -26310,7 +26310,7 @@ namespace ts {
             const isTaggedTemplate = node.kind === SyntaxKind.TaggedTemplateExpression;
             const isDecorator = node.kind === SyntaxKind.Decorator;
             const isJsxOpeningOrSelfClosingElement = isJsxOpeningLikeElement(node);
-            const reportErrors = !candidatesOutArray;
+            const reportErrors = !candidatesOutArray && produceDiagnostics;
 
             let typeArguments: NodeArray<TypeNode> | undefined;