From 891159c6ac532fb090c6a01667c94d060b2623ce Mon Sep 17 00:00:00 2001
From: Andy Hanson <anhans@microsoft.com>
Date: Mon, 12 Dec 2016 14:02:14 -0800
Subject: [PATCH] Make some code in checker neater

---
 src/compiler/checker.ts | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index ebe6693eb40..0fc7b0cde87 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -466,9 +466,7 @@ namespace ts {
                     // other kinds of value declarations take precedence over modules
                     target.valueDeclaration = source.valueDeclaration;
                 }
-                forEach(source.declarations, node => {
-                    target.declarations.push(node);
-                });
+                addRange(target.declarations, source.declarations);
                 if (source.members) {
                     if (!target.members) target.members = createMap<Symbol>();
                     mergeSymbolTable(target.members, source.members);
@@ -1100,7 +1098,7 @@ namespace ts {
         }
 
         function getDeclarationOfAliasSymbol(symbol: Symbol): Declaration | undefined {
-            return forEach(symbol.declarations, d => isAliasSymbolDeclaration(d) ? d : undefined);
+            return find<Declaration>(symbol.declarations, isAliasSymbolDeclaration);
         }
 
         function getTargetOfImportEqualsDeclaration(node: ImportEqualsDeclaration): Symbol {