The call to abi::__cxa_demangle() with too small of a char[] can cause segfaults or hangs. This change increases the array from 256 to 4096. Bug: angleproject:3553 Test: Verify validation layers don't segfault/hang Change-Id: I6704ff00bfab62c99eb288f803ccda35a037dd9d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1670580Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Tim Van Patten <timvp@google.com>
