The `style::Layer` class now exposes all the properties contained at `style::LayerImpl`.
This allowed to drop `style::Layer::accept()` method usage, avoid the repeated generated code
and thus save some binary size.
This patch is a part of the layers modularization effort.
[node] Hook up map-wide "crossSourceCollisions" option, defaulting to true.
[test] Pass "crossSourceCollisions" test option through test harness; enable cross-source-collisions tests on native.
Reverts d5aff71 (#11948) and implements an alternative solution.
Even with the previous fix applied, we were calling `renderFinished()` directly when the render was canceled. This led to the following scenario (all on the main thread):
- `Map::renderStill()` callback is called, `uv_async_send` schedules a call to `renderFinished()`.
- `NodeMap::cancel()` destroys the map object, and calls `renderFinished()` directly, which cleans up the request
- `NodeMap::startRender()` is called to schedule a _new_ render, which means that a new callback will be set
- The `uv_async_t` fires and calls `renderFinished` again:
- We don't return early as intended by the fix in #11948 since a new callback/`req` object is now available.
- Since neither error nor image has been set, we'll see a `Didn't get an image` error message.
- We call the callback with the error. In scenario where we're reusing Map objects, we will start a new render, which will now trigger the `Map is currently rendering an image` error in `Map::renderStill`, and the map object enters a circle in which it will now fail repeatedly with this error.
This commit fixes the issue by completely removing the existing `uv_async_t` handle that could have a scheduled call, and replacing it with a fresh instance of an `uv_async_t` handle.
* Change error message with invalid render usage
This change disambiguates this error condition with a different error with the same error message at 789baf4c1f/src/mbgl/map/map.cpp (L157-L160)
* fix test expectation
Avoids a potential crash if garbage collection happens in the middle of a call to NodeMap::request from a map that's eligible for GC.
Fixes issue #11281
