From bcdf33d8de066b827e8251875675b7a0084446c5 Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Fri, 20 Sep 2019 17:44:19 -0700
Subject: [PATCH] Fix forEachChild

---
 src/compiler/parser.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 9852ee8feb7..edaa7ebeaeb 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -165,7 +165,8 @@ namespace ts {
                 return visitNode(cbNode, (<TypeReferenceNode>node).typeName) ||
                     visitNodes(cbNode, cbNodes, (<TypeReferenceNode>node).typeArguments);
             case SyntaxKind.TypePredicate:
-                return visitNode(cbNode, (<TypePredicateNode>node).parameterName) ||
+                return visitNode(cbNode, (<TypePredicateNode>node).assertsModifier) ||
+                    visitNode(cbNode, (<TypePredicateNode>node).parameterName) ||
                     visitNode(cbNode, (<TypePredicateNode>node).type);
             case SyntaxKind.TypeQuery:
                 return visitNode(cbNode, (<TypeQueryNode>node).exprName);