From 4789ff0316f7a19e53fda55f07a54ff3aedaa26d Mon Sep 17 00:00:00 2001
From: Mohamed Hegazy <mhegazy@microsoft.com>
Date: Wed, 29 Jun 2016 13:34:41 -0700
Subject: [PATCH] Do not check ambients, and overloads

---
 src/compiler/checker.ts | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 06813b82557..d1c3a88c85e 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -14532,8 +14532,11 @@ namespace ts {
                         case SyntaxKind.MethodDeclaration:
                         case SyntaxKind.GetAccessor:
                         case SyntaxKind.SetAccessor:
-                            checkUnusedIdentifiers(<FunctionLikeDeclaration>node);
-
+                            if ((<FunctionLikeDeclaration>node).body) {
+                                checkUnusedIdentifiers(<FunctionLikeDeclaration>node);
+                            }
+                            checkUnusedTypeParameters(<FunctionLikeDeclaration>node);
+                            break;
                         case SyntaxKind.MethodSignature:
                         case SyntaxKind.CallSignature:
                         case SyntaxKind.ConstructSignature:
@@ -17029,7 +17032,9 @@ namespace ts {
                     checkUnusedIdentifiersDeferred(node);
                 }
 
-                checkUnusedIdentifiersDeferredNodes();
+                if (!node.isDeclarationFile) {
+                    checkUnusedIdentifiersDeferredNodes();
+                }
 
                 deferredNodes = undefined;
                 deferredUnusedIdentifierNodes = undefined;