From a05f669f43d4e52b2fe4e349d9968b61d3090ae4 Mon Sep 17 00:00:00 2001
From: Sheetal Nandi <shkamat@microsoft.com>
Date: Mon, 22 Jan 2018 16:40:29 -0800
Subject: [PATCH] Expose sort and deduplicate diagnostics in Public API Fixes
 #20876

---
 src/compiler/core.ts                               | 8 ++++----
 tests/baselines/reference/api/tsserverlibrary.d.ts | 1 +
 tests/baselines/reference/api/typescript.d.ts      | 1 +
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/compiler/core.ts b/src/compiler/core.ts
index ae506fd616a..e927bd35382 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -16,6 +16,10 @@ namespace ts {
         // Update: We also consider a path like `C:\foo.ts` "relative" because we do not search for it in `node_modules` or treat it as an ambient module.
         return pathIsRelative(moduleName) || isRootedDiskPath(moduleName);
     }
+
+    export function sortAndDeduplicateDiagnostics(diagnostics: ReadonlyArray<Diagnostic>): Diagnostic[] {
+        return sortAndDeduplicate(diagnostics, compareDiagnostics);
+    }
 }
 
 /* @internal */
@@ -1897,10 +1901,6 @@ namespace ts {
         return text1 ? Comparison.GreaterThan : Comparison.LessThan;
     }
 
-    export function sortAndDeduplicateDiagnostics(diagnostics: ReadonlyArray<Diagnostic>): Diagnostic[] {
-        return sortAndDeduplicate(diagnostics, compareDiagnostics);
-    }
-
     export function normalizeSlashes(path: string): string {
         return path.replace(/\\/g, "/");
     }
diff --git a/tests/baselines/reference/api/tsserverlibrary.d.ts b/tests/baselines/reference/api/tsserverlibrary.d.ts
index cd1b577b711..8c244f3d4e0 100644
--- a/tests/baselines/reference/api/tsserverlibrary.d.ts
+++ b/tests/baselines/reference/api/tsserverlibrary.d.ts
@@ -2814,6 +2814,7 @@ declare namespace ts {
 }
 declare namespace ts {
     function isExternalModuleNameRelative(moduleName: string): boolean;
+    function sortAndDeduplicateDiagnostics(diagnostics: ReadonlyArray<Diagnostic>): Diagnostic[];
 }
 declare function setTimeout(handler: (...args: any[]) => void, timeout: number): any;
 declare function clearTimeout(handle: any): void;
diff --git a/tests/baselines/reference/api/typescript.d.ts b/tests/baselines/reference/api/typescript.d.ts
index 3cbca96f8fa..2933d11e5cb 100644
--- a/tests/baselines/reference/api/typescript.d.ts
+++ b/tests/baselines/reference/api/typescript.d.ts
@@ -2814,6 +2814,7 @@ declare namespace ts {
 }
 declare namespace ts {
     function isExternalModuleNameRelative(moduleName: string): boolean;
+    function sortAndDeduplicateDiagnostics(diagnostics: ReadonlyArray<Diagnostic>): Diagnostic[];
 }
 declare function setTimeout(handler: (...args: any[]) => void, timeout: number): any;
 declare function clearTimeout(handle: any): void;