fix(@angular-devkit/build-optimizer): don't mark tslib helpers which …#15451

Merged

mgechev merged 1 commit intoangular:masterfrom alan-agius4:tslib-multiple-pure

Aug 27, 2019

+64-11

Commits on Aug 27, 2019

fix(@angular-devkit/build-optimizer): don't mark tslib helpers which are suffixed with $ and a number as pure
alan-agius4
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