Bug 188899 – Function evaluation with special characters as params

• Status: NEW
• Component: JavaScriptCore

Hi everyone,
I found this inconsistency in JSC when it try to parsing the HTML comment block as param, but I don't know if this behavior is expected by others engines. 
This param was generated by a fuzzer.

Version: 235121
OS: Ubuntu 16.04 x64

Steps to reproduce:
let a = Function("<!--", "print(1+1)")
a()
let b = Function("<!--", "<!--", "print(1+1)")
b()

Actual result: 
SyntaxError: Unexpected token '}'. Expected a parameter pattern or a ')' in parameter list.

Expected result:
2
2

V8, Chakra and SpiderMonkey works as expected.

cinfuzz