littledan 98f819c3e0 Add web compat workarounds for ES2015 RegExp semantics ... Unexpectedly, websites depend on doing feature testing with RegExp.prototype.sticky and browser testing with RegExp.prototype.toString(). ES2015 newly throws exceptions for both of these. In order to enable shipping new ES2015 semantics, this patch puts in narrow workarounds for those two cases, keeping their old behavior. UseCounters are added for how often those particular cases come up, so we can see if it can be deprecated. R=yangguo BUG=v8:4637,v8:4617 LOG=Y CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel Review URL: https://codereview.chromium.org/1543723002 Cr-Commit-Position: refs/heads/master@{#32997}		2015-12-22 06:36:17 +00:00
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js	Add web compat workarounds for ES2015 RegExp semantics	2015-12-22 06:36:17 +00:00
regex	Add web compat workarounds for ES2015 RegExp semantics	2015-12-22 06:36:17 +00:00