Add test for << in comment

fb55 · Ms2ger · commit 538a6cd2a014 · 2022-03-11T09:48:34.000+01:00
See inikulin/parse5#325
diff --git a/tokenizer/test1.test b/tokenizer/test1.test
@@ -149,6 +149,10 @@
 "input":"<!-- <test-->",
 "output":[["Comment", " <test"]]},
 
+{"description":"<< in comment",
+"input":"<!--<<-->",
+"output":[["Comment", "<<"]]},
+
 {"description":"<! in comment",
 "input":"<!-- <!test-->",
 "output":[["Comment", " <!test"]]},
