[co19] Roll co19 to 7a43aa19fb31db657b8b2dac2ed8a8af28889be3

2020-11-25 [email protected] Fixes #968: missing testing options added back.
2020-11-25 [email protected] #969. Line numbers where we expect an error fixed
2020-11-25 [email protected] #969. Stdout tests failures on Windows fixed. Don't pass executable arguments to the Process
2020-11-24 [email protected] Fixes #968: non-nullable shared option removed.
2020-11-23 [email protected] #932. HttpRequest tests fixed to work with cross origin
2020-11-20 [email protected] #926.Tryjob failures fixed

Cq-Include-Trybots: dart/try:analyzer-nnbd-linux-release-try,dart2js-nnbd-linux-x64-chrome-try,ddc-nnbd-linux-release-chrome-try,front-end-nnbd-linux-release-x64-try,vm-kernel-nnbd-linux-release-x64-try,vm-kernel-nnbd-win-release-x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try,vm-kernel-precomp-nnbd-win-release-x64-try
Change-Id: I32eaa75a0fcf4b5b7d8c4855b311a46948afb6f6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/173964
Reviewed-by: William Hesse <[email protected]>

DEPS

@@ -44,7 +44,7 @@ vars = {
   # co19 is a cipd package. Use update.sh in tests/co19[_2] to update these
   # hashes. It requires access to the dart-build-access group, which EngProd
   # has.
-  "co19_rev": "1653a8f5242599b7b8d40b9f1466f717556626d0",
+  "co19_rev": "7a43aa19fb31db657b8b2dac2ed8a8af28889be3",
   "co19_2_rev": "e48b3090826cf40b8037648f19d211e8eab1b4b6",
 
   # The internal benchmarks to use. See go/dart-benchmarks-internal