From c38569655bb151ec351c27032fbd3ef43b8856ba Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Tue, 18 Jun 2024 17:28:44 -0700
Subject: [PATCH] Set JSDocParsingMode.ParseForTypeErrors in compiler tests
 (#58917)

---
 src/harness/fakesHosts.ts | 3 +++
 src/harness/harnessIO.ts  | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/src/harness/fakesHosts.ts b/src/harness/fakesHosts.ts
index b677d724826..cbd2a285080 100644
--- a/src/harness/fakesHosts.ts
+++ b/src/harness/fakesHosts.ts
@@ -381,6 +381,9 @@ export class CompilerHost implements ts.CompilerHost {
             }
         }
 
+        // Set ParseForTypeErrors like tsc.
+        languageVersionOrOptions = typeof languageVersionOrOptions === "object" ? languageVersionOrOptions : { languageVersion: languageVersionOrOptions };
+        languageVersionOrOptions = { ...languageVersionOrOptions, jsDocParsingMode: ts.JSDocParsingMode.ParseForTypeErrors };
         const parsed = ts.createSourceFile(fileName, content, languageVersionOrOptions, this._setParentNodes || this.shouldAssertInvariants);
         if (this.shouldAssertInvariants) {
             Utils.assertInvariants(parsed, /*parent*/ undefined);
diff --git a/src/harness/harnessIO.ts b/src/harness/harnessIO.ts
index ea8e988eb99..dae49ff142f 100644
--- a/src/harness/harnessIO.ts
+++ b/src/harness/harnessIO.ts
@@ -222,6 +222,9 @@ export namespace Compiler {
         const shouldAssertInvariants = !lightMode;
 
         // Only set the parent nodes if we're asserting invariants.  We don't need them otherwise.
+        // Set ParseForTypeErrors like tsc.
+        languageVersionOrOptions = typeof languageVersionOrOptions === "object" ? languageVersionOrOptions : { languageVersion: languageVersionOrOptions };
+        languageVersionOrOptions = { ...languageVersionOrOptions, jsDocParsingMode: ts.JSDocParsingMode.ParseForTypeErrors };
         const result = ts.createSourceFile(fileName, sourceText, languageVersionOrOptions, /*setParentNodes:*/ shouldAssertInvariants);
 
         if (shouldAssertInvariants) {