Revert "Remove the api.AudioBufferSourceNode.start entry (#7490)" (#7516)
Revert "Remove the api.AudioBufferSourceNode.start entry (#7490)" (#7516)

This reverts commit 639e9920682c68737ba5c07e7ed7c842e52ef709.
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data