Improve memory consumption by hiding resolver and canceller references from call stack on PHP 7+#118

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WyriHaximus merged 2 commits intoreactphp:2.xfrom

clue-labs:stack

May 6, 2018

Commits on May 4, 2018

Avoid garbage reference by hiding canceller from call stack on PHP 7+
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Avoid garbage reference by hiding resolver from call stack on PHP 7+
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