From 55034d8e103410a6cbd4610c8f50935276db6dda Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Sat, 24 Sep 2016 07:38:26 -0700
Subject: [PATCH] Emit widened literal type for const without type annotation

---
 src/compiler/checker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 01c5642c7d4..54a28528da7 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -18950,7 +18950,7 @@ namespace ts {
             // Get type of the symbol if this is the valid symbol otherwise get type at location
             const symbol = getSymbolOfNode(declaration);
             const type = symbol && !(symbol.flags & (SymbolFlags.TypeLiteral | SymbolFlags.Signature))
-                ? getTypeOfSymbol(symbol)
+                ? getWidenedLiteralType(getTypeOfSymbol(symbol))
                 : unknownType;
 
             getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);