From 28b39d97a3efd1d3b8f7610985bb3ba5bcb2cdde Mon Sep 17 00:00:00 2001
From: Ron Buckton <ron.buckton@microsoft.com>
Date: Mon, 24 Aug 2020 10:41:04 -0700
Subject: [PATCH] Only contextually type unused 'await'

---
 src/compiler/checker.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 819cd98f6fd..79913281d82 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -23193,7 +23193,7 @@ namespace ts {
                     if (node === right) {
                         return getContextualType(binaryExpression, contextFlags);
                     }
-                    else if (!(contextFlags! & ContextFlags.SkipBindingPatternsAndUnusedExpressions)) {
+                    else if (isAwaitExpression(skipParentheses(node)) && !(contextFlags! & ContextFlags.SkipBindingPatternsAndUnusedExpressions)) {
                         return voidType;
                     }
                     return undefined;
@@ -23610,13 +23610,13 @@ namespace ts {
                     return getContextualJsxElementAttributesType(<JsxOpeningLikeElement>parent, contextFlags);
                 case SyntaxKind.ExpressionStatement:
                 case SyntaxKind.VoidExpression:
-                    if (!(contextFlags! & ContextFlags.SkipBindingPatternsAndUnusedExpressions)) {
+                    if (isAwaitExpression(skipParentheses(node)) && !(contextFlags! & ContextFlags.SkipBindingPatternsAndUnusedExpressions)) {
                         return voidType;
                     }
                     break;
                 case SyntaxKind.ForStatement: {
                     const forStatement = parent as ForStatement;
-                    if (!(contextFlags! & ContextFlags.SkipBindingPatternsAndUnusedExpressions) && (node === forStatement.initializer || node === forStatement.incrementor)) {
+                    if (isAwaitExpression(skipParentheses(node)) && !(contextFlags! & ContextFlags.SkipBindingPatternsAndUnusedExpressions) && (node === forStatement.initializer || node === forStatement.incrementor)) {
                         return voidType;
                     }
                     break;