Port memory improvements from 2.x to master#150

Merged

jsor merged 9 commits intoreactphp:masterfrom

WyriHaximus-secret-labs:port-memory-improvements-from-2.x

Dec 2, 2019

Commits on Nov 27, 2019

Only pass args to resolver and canceller if callback requires them

clue
authored and
WyriHaximus
committed
Use static progress callback without binding to promise

clue
authored and
WyriHaximus
committed
Use static resolve and reject callback without binding to promise

clue
authored and
WyriHaximus
committed

Commits on Nov 28, 2019