Issue #1963470 by effulgentsia, Crell, tim.plunkett, larowlan: Move controller derivation to route enhancers (and just that).

Revert "Issue #1938980 by Crell, rootatwc, tim.plunkett: Move controller derivation to route enhancers."

Temporary rollback; this broke AJAX paths. Working on better test coverage.

This reverts commit 221099b5.

Issue #1793520 by disasm, klausi, tnightingale, Crell: Add access control mechanism for new router system.

Issue #1801570 by effulgentsia, klausi, Crell, disasm: DX: Replace hook_route_info() with YAML files and RouteBuildEvent.

Revert "Issue #1801570 by effulgentsia, klausi, Crell: DX: Replace hook_route_info() with YAML files and RouteBuildEvent. This unintentionally broke REST module tests."

This reverts commit 7bf7eb83.

Issue #1801570 by effulgentsia, klausi, Crell: DX: Replace hook_route_info() with YAML files and RouteBuildEvent.

Larry Garfield authored Sep 02, 2012 and Alex Bronstein committed Oct 01, 2012

Port the regex path matching from Symfony to our CompiledRoute class so that we can match placeholder-using paths.