Unreviewed, rolling out r192876.

It broke a lot of JSC and layout tests for GTK and EFL

Reverted changeset:

"[ES6] "super" and "this" should be lexically bound inside an
arrow function and should live in a JSLexicalEnvironment"
https://bugs.webkit.org/show_bug.cgi?id=149338
http://trac.webkit.org/changeset/192876

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@192882 268f45cc-cd09-0410-ab3c-d52691b4dbfc
77 files changed