From bdd8a3e8786426128e10f9778de1a2cdfd2de1d5 Mon Sep 17 00:00:00 2001
From: Andrew Branch <andrew@wheream.io>
Date: Mon, 8 Jul 2019 16:32:53 -0700
Subject: [PATCH] Only add "Did you forget await" for function args when the
 parameter type is not promise-like

---
 src/compiler/checker.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 471a2c56742..943eb2f3df5 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -21453,6 +21453,10 @@ namespace ts {
 
             function maybeAddMissingAwaitInfo(errorNode: Node | undefined, source: Type, target: Type) {
                 if (errorNode && reportErrors && errorOutputContainer.errors && errorOutputContainer.errors.length) {
+                    // Bail if target is Promise-like---something else is wrong
+                    if (getAwaitedTypeOfPromise(target)) {
+                        return;
+                    }
                     const awaitedTypeOfSource = getAwaitedTypeOfPromise(source);
                     if (awaitedTypeOfSource && isTypeRelatedTo(awaitedTypeOfSource, target, relation)) {
                         addRelatedInfo(errorOutputContainer.errors[0], createDiagnosticForNode(errorNode, Diagnostics.Did_you_forget_to_use_await));