From 48de0b6ff6b2ec8c0d6e00339d9e254c023add40 Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <drosen@microsoft.com>
Date: Wed, 30 Sep 2015 14:30:54 -0700
Subject: [PATCH] Account for interface extends clauses.

---
 src/compiler/checker.ts | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index df4f99fbb3e..18942e8ce56 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -14054,9 +14054,20 @@ namespace ts {
             }
 
             if (isHeritageClauseElementIdentifier(<EntityName>entityName)) {
-                let meaning = entityName.parent.kind === SyntaxKind.ExpressionWithTypeArguments ?
-                    (SymbolFlags.Value | SymbolFlags.Type) :
-                    SymbolFlags.Namespace;
+                let meaning = SymbolFlags.None;
+
+                // In an interface or class, we're definitely interested in a type.
+                if (entityName.parent.kind === SyntaxKind.ExpressionWithTypeArguments) {
+                    meaning = SymbolFlags.Type;
+
+                    // In a class 'extends' clause we are also looking for a value.
+                    if (isExpressionWithTypeArgumentsInClassExtendsClause(entityName.parent)) {
+                        meaning |= SymbolFlags.Value;
+                    }
+                }
+                else {
+                    meaning = SymbolFlags.Namespace;
+                }
 
                 meaning |= SymbolFlags.Alias;
                 return resolveEntityName(<EntityName>entityName, meaning);