Reland "AOT support for Linux Desktop I: switch Linux builds to assemble (#41612)" (#42030)" (#42038)

This reverts commit 142a8630.

git@github.com:flutter/engine.git/compare/7d90779bb66f...1d62160fdb2f

git log 7d90779bb66f..1d62160fdb2f --no-merges --oneline
2019-10-04 iska.kaushik@gmail.com Prettify all CMX files (flutter/engine#12800)
2019-10-04 garyq@google.com Restart all modern Samsung keyboard IMM (flutter/engine#12780)
2019-10-04 dnfield@google.com Reland fuchsia build improvements (flutter/engine#12795)
2019-10-04 50856934+nturgut@users.noreply.github.com Fixing selection issues in Firefox (flutter/engine#12793)
2019-10-04 chinmaygarde@google.com Disable EmbedderTest::CanLaunchAndShutdownMultipleTimes. (flutter/engine#12799)
2019-10-04 iska.kaushik@gmail.com [flutter_runner] Update the cmx files to include TZ support (flutter/engine#12798)
2019-10-04 skia-flutter-autoroll@skia.org Roll src/third_party/skia fbdf48ecb204..95edac1c9a4a (1 commits) (flutter/engine#12790)


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* Minor clean-up in terminal.dart

* Don't wrap text in tests (otherwise we'll be sensitive to the terminal width).

* remove prints

* Remove the setUpAll() to see if that changes the error message.

This reverts commit 3024053c.

Restructure ProjectFileInvalidator.findInvalidated a bit

I plan to modify `ProjectFileInvalidator.findInvalidated` to allow
it to use `FileStat.stat` instead of `FileStat.statSync`.
Restructure `findInvalidated` a bit so that `FileStat.statSync` is
called in only one place.

Note that this change now always counts the `.packages` file as one
of the files scanned, even if it does not exist.  I think that this
is okay since it more accurately reflects the number of times that we
hit the filesystem with `stat()`, and it is consistent with how other
files are counted.

git@github.com:flutter/engine.git/compare/759d3dba259b...7d90779bb66f

git log 759d3dba259b..7d90779bb66f --no-merges --oneline
2019-10-04 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from VkAgX... to by2LL... (flutter/engine#12791)
2019-10-04 bkonyi@google.com Roll src/third_party/dart 28f21d4e99..d6c6d12ebf (3 commits)
2019-10-04 jonahwilliams@google.com Fix bug in package script and add dev_compiler to list of uploaded packages (flutter/engine#12785)
2019-10-04 bkonyi@google.com Roll src/third_party/dart 7a7dcd1ed9..28f21d4e99 (2 commits)
2019-10-04 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from wYLiQ... to JyZWz... (flutter/engine#12788)


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In preparation for some refactoring that I will be doing to
`ProjectFileInvalidator.findInvalidated`, make its code a bit
clearer:
* Indicate which arguments may be null.
* Don't bother calling `FileStat.statSync` on the `.packages` file
  for the initial load.  This makes the checks for the `.packages`
  file consistent with those for other files.
* Use `DateTime.isAfter()` instead of comparing microseconds
  ourselves.

While I was touching this file, I also removed some unnecessary
comparisons to `false`. (`_ManifestAssetBundle.wasBuiltOnce()` is the
only implementation I can find of `AssetBundle.wasBuiltOnce()`, and
it never returns `null`.)

Bytecode generation will otherwise omit assert code, causing --enable-asserts to have no effect in the VM.

This reverts commit 2b138fd7.

* Generate projects using the new Android embedding

* Add comment about usesNewEmbedding:true

* Feedback

* Rework way to detect new embedding in new apps

759d3dba2 Roll src/third_party/skia 35a60f622c58..fbdf48ecb204 (2 commits) (flutter/engine#12787) (#41965)


git@github.com:flutter/engine.git/compare/ec9d487b0599...759d3dba259b

git log ec9d487b0599..759d3dba259b --no-merges --oneline
2019-10-04 skia-flutter-autoroll@skia.org Roll src/third_party/skia 35a60f622c58..fbdf48ecb204 (2 commits) (flutter/engine#12787)


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git@github.com:flutter/engine.git/compare/a0605af402ac...ec9d487b0599

git log a0605af402ac..ec9d487b0599 --no-merges --oneline
2019-10-04 bkonyi@google.com Roll src/third_party/dart b4688e9172..7a7dcd1ed9 (5 commits)


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a0605af40 Roll src/third_party/skia d71344590a2f..35a60f622c58 (9 commits) (flutter/engine#12784) (#41958)


git@github.com:flutter/engine.git/compare/9db06370490d...a0605af402ac

git log 9db06370490d..a0605af402ac --no-merges --oneline
2019-10-04 skia-flutter-autoroll@skia.org Roll src/third_party/skia d71344590a2f..35a60f622c58 (9 commits) (flutter/engine#12784)


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Revert "replace package:vm_service_client with package:vm_service in the devicelab project (#41646)" (#41960)

git@github.com:flutter/engine.git/compare/2e163b27805b...9db06370490d

git log 2e163b27805b..9db06370490d --no-merges --oneline
2019-10-04 bkonyi@google.com Roll src/third_party/dart 7376167b2a..b4688e9172 (4 commits)


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* added questions on Platform / OS Version / Design

* changed following the comments

* removed the host platform question

git@github.com:flutter/engine.git/compare/62e58c5d9fc2...2e163b27805b

git log 62e58c5d9fc2..2e163b27805b --no-merges --oneline
2019-10-04 dnfield@google.com Revert "Build AOT and test targets, generate FARs when building Fuchsia (#12761)" (flutter/engine#12781)
2019-10-03 30870216+gaaclarke@users.noreply.github.com Enabled people to chose if SystemNavigator.pop is animated on iOS. (flutter/engine#12752)
2019-10-03 30870216+gaaclarke@users.noreply.github.com Added some thread asserts to the code and made ios_surface_ safe since (flutter/engine#12775)
2019-10-03 dnfield@google.com Build AOT and test targets, generate FARs when building Fuchsia (flutter/engine#12761)


If this roll has caused a breakage, revert this CL and stop the roller
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git@github.com:flutter/engine.git/compare/8aa47326ae73...62e58c5d9fc2

git log 8aa47326ae73..62e58c5d9fc2 --no-merges --oneline
2019-10-03 bkonyi@google.com Roll src/third_party/dart 07a63a17a4..7376167b2a (8 commits)
2019-10-03 skia-flutter-autoroll@skia.org Roll src/third_party/skia 35e0a58278a3..d71344590a2f (11 commits) (flutter/engine#12774)
2019-10-03 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from p319_... to VkAgX... (flutter/engine#12778)


If this roll has caused a breakage, revert this CL and stop the roller
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git@github.com:flutter/engine.git/compare/7d67e275ff82...8aa47326ae73

git log 7d67e275ff82..8aa47326ae73 --no-merges --oneline
2019-10-03 chinmaygarde@google.com Fix Metal builds. (flutter/engine#12777)
2019-10-03 30870216+gaaclarke@users.noreply.github.com Revert "Manage resource and onscreen contexts using separate IOSGLContext objects (#12277)" (flutter/engine#12773)
2019-10-03 bkonyi@google.com Roll src/third_party/dart afac6a3714..07a63a17a4 (6 commits)
2019-10-03 dnfield@google.com roll buildroot to 01e923507b28e5d1d3fe7597d2db2b30b0a543e9 (flutter/engine#12771)
2019-10-03 jonahwilliams@google.com Create a package-able incremental compiler (flutter/engine#12681)
2019-10-03 47866232+chunhtai@users.noreply.github.com add windows embedding test (flutter/engine#12423)
2019-10-03 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from g-PD1... to wYLiQ... (flutter/engine#12770)


If this roll has caused a breakage, revert this CL and stop the roller
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