Merge branch 'master' into constructorAccessibility

Conflicts: src/compiler/checker.ts
microsoft · mhegazy · Feb 17, 2016 · Feb 3, 2016 · Feb 3, 2016 · Feb 4, 2016
commit de23e2ff74087262448c13f005b5631ae69366f3
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -1711,6 +1711,15 @@ namespace ts {
             return result;
         }
 
+        function typePredicateToString(typePredicate: TypePredicate, enclosingDeclaration?: Declaration, flags?: TypeFormatFlags): string {
+            const writer = getSingleLineStringWriter();
+            getSymbolDisplayBuilder().buildTypePredicateDisplay(typePredicate, writer, enclosingDeclaration, flags);
+            const result = writer.string();
+            releaseStringWriter(writer);
+
+            return result;
+        }
+
         function visibilityToString(flags: NodeFlags) {
             if (flags === NodeFlags.Private) {
                 return "private";