• littledan's avatar
    Unship ES2015 for-in initializer restrictions · 7245dabd
    littledan authored
    We now have data that 0.011% of websites use the pattern
      for (var i = 0 in j) { ... }
    This pattern was banned by ES2015, with the idea to revisit if
    it presents a web compatibility problem. Informally, after
    the May 2016 TC39 meeting, the new data was discussed, and there
    was interest in reversing the decision. Although the specification
    is not yet updated, it seems likely to come soon.
    
    This patch turns off the flag which bans that construct, reenabling
    it. The change should prevent websites from breaking.
    
    BUG=v8:4942
    
    Review-Url: https://codereview.chromium.org/2011223003
    Cr-Commit-Position: refs/heads/master@{#36562}
    7245dabd
flag-definitions.h 52.4 KB