The Test262RunnerHandler class in test-test262 was made in order to
spawn a subprocess, connect to its input/output error pipes, and obtain
its return value.
Later on, a copy of this implementation was added to TestSed with
modifications, such as adding support for reading from the output pipes
as well.
Unify these two implementations into a new Core::Command class. This new
implementation is more closely modeled from the TestSed implementation
due to the extra functionality it implemented.
This gives us free error-propagation in Core::command(...) and
HackStudio::ProjectBuilder::for_each_library_dependencies.
The comment about "String will be in the null state" has been misleading
for a long time, so it is removed.
We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
The names stdout / stderr are bound to conflict with existing
declarations when compiling against other LibC's. The build on OpenBSD
is broken for this reason at the moment.
Lets rename the members to more generic names to resolve the situation.
Previously, Core::command only returned a String which contained the
data from stdout.
The CommandResult struct contains the exit code as well as the data
from stdout and stderr.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
