From a13424cc8d445d2bb030c483046308f81a273a5a Mon Sep 17 00:00:00 2001
From: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>
Date: Fri, 11 May 2018 14:52:39 -0700
Subject: [PATCH] Add another test of js special assignment merging

---
 .../fourslash/jsSpecialAssignmentMerging2.ts  | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 tests/cases/fourslash/jsSpecialAssignmentMerging2.ts

diff --git a/tests/cases/fourslash/jsSpecialAssignmentMerging2.ts b/tests/cases/fourslash/jsSpecialAssignmentMerging2.ts
new file mode 100644
index 0000000000000..c04432fcc2770
--- /dev/null
+++ b/tests/cases/fourslash/jsSpecialAssignmentMerging2.ts
@@ -0,0 +1,24 @@
+/// <reference path="fourslash.ts" />
+// @noEmit: true
+// @allowJs: true
+// @checkJs: true
+
+// @Filename: b.d.ts
+//// declare namespace N {
+////   class X { }
+//// }
+// @Filename: a.js
+//// var N = {};
+//// N.X = function() { };
+// @Filename: test.js
+//// var c = N.X
+//// /*1*/
+
+// #24015
+// This failed with 13 and up on my machine, so 20 is 2**7 more than needed.
+for (let i = 0; i < 20; i++) {
+    goTo.marker('1');
+    edit.insertLine('c');
+
+    verify.getSemanticDiagnostics([])
+}