#17676 - making the proxy instantiation compatible with ProxyManager 2.x by detecting proxy features#17919

Ocramius wants to merge 4 commits intosymfony:mastersymfony/symfony:masterfrom

Ocramius:fix/#17676-proxy-manager-2-compatibility-in-container-dumperOcramius/symfony:fix/#17676-proxy-manager-2-compatibility-in-container-dumperCopy head branch name to clipboard