* The lastchange hook wrote a file no one ever read.
* We don’t need binutils because we don’t use debug fission on Linux.
* We dont use eu-strip.

When we pipelined the drawing commands we caused UpdateScene to be called
before Preroll, which isn't allowed. Now we call Preroll, UpdateScene, and
Paint separately.

* Faster hash codes.

Mask the intermediate values when computing composite
hash codes.

* WIP

* WIP

* WIP

I updated the C++ and Dart sides but forgot to update the Java side.

Fixes https://github.com/flutter/flutter/issues/6891

These are implemented on macOS and Fuchsia.

Rather than hitting an assert in platform-independent code, we now trigger an
assert closer to the relevant code when the font provider is missing.

Previously, —unoptimized builds on Android would include debug symbols but still would be optimized. This killed the experience in the debugger on Android.

Fixes https://github.com/flutter/flutter/issues/6631

Previously we treated everything as touch.

The picture may hold references to images backed by GPU textures that must
be deleted on the IO thread.

At some point recently we started putting a JSON file in the out/ directory and this broke this suggested build script.
This patch makes the script more resilient to such files.

Allow checkerboarding raster cache entries for debugging purposes (can be toggled from Dart). (#3200)

(JSONObject.getString() will return the string "null" for a JSON null value)

Fixes https://github.com/flutter/flutter/issues/6643

This is to ensure that the depfile generated by the snapshotter has
the correct target.