[NFC][Py Reformat] Reformat python files in lldb

This is an ongoing series of commits that are reformatting our Python
code. Reformatting is done with `black` (23.1.0).

If you end up having problem

[NFC][Py Reformat] Reformat python files in lldb

This is an ongoing series of commits that are reformatting our Python
code. Reformatting is done with `black` (23.1.0).

If you end up having problems merging this commit because you have made
changes to a python file, the best way to handle that is to run `git
checkout --ours <yourfile>` and then reformat it with black.

RFC: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style

Differential revision: https://reviews.llvm.org/D151460

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[lldb][tests] Automatically call compute_mydir (NFC)

Eliminate boilerplate of having each test manually assign to `mydir` by calling
`compute_mydir` in lldbtest.py.

Differential Revision: https://r

[lldb][tests] Automatically call compute_mydir (NFC)

Eliminate boilerplate of having each test manually assign to `mydir` by calling
`compute_mydir` in lldbtest.py.

Differential Revision: https://reviews.llvm.org/D128077

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[lldb] Skip a bunch of tests that shouldn't run remotely

Skip a bunch of tests that don't really make sense to run remotely.

[lldb] Don't print "Command Options Usage:" for an alias with no options

"shell" is an alias to "platform shell -h --". Previously you would get this
help text:

(lldb) help shell
Run a shell comman

[lldb] Don't print "Command Options Usage:" for an alias with no options

"shell" is an alias to "platform shell -h --". Previously you would get this
help text:

(lldb) help shell
Run a shell command on the host. Expects 'raw' input (see 'help raw-input'.)

Syntax: shell <shell-command>

Command Options Usage:

'shell' is an abbreviation for 'platform shell -h --'

Since the code doesn't handle the base command having options
but the alias removing them. With these changes you get:

(lldb) help shell
Run a shell command on the host. Expects 'raw' input (see 'help raw-input'.)

Syntax: shell <shell-command>

'shell' is an abbreviation for 'platform shell -h --'

Note that we already handle a non-alias command having no options,
for example "quit":

(lldb) help quit
Quit the LLDB debugger.

Syntax: quit [exit-code]

Reviewed By: JDevlieghere, jingham

Differential Revision: https://reviews.llvm.org/D117004

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[lldb/Target] Add custom interpreter option to `platform shell`

This patch adds the ability to use a custom interpreter with the
`platform shell` command. If the user set the `-s|--shell` option
wit

[lldb/Target] Add custom interpreter option to `platform shell`

This patch adds the ability to use a custom interpreter with the
`platform shell` command. If the user set the `-s|--shell` option
with the path to a binary, lldb passes it down to the platform's
`RunShellProcess` method and set it as the shell to use in
`ProcessLaunchInfo to run commands.

Note that not all the Platforms support running shell commands with
custom interpreters (i.e. RemoteGDBServer is only expected to use the
default shell).

This patch also makes some refactoring and cleanups, like swapping
CString for StringRef when possible and updating `SBPlatformShellCommand`
with new methods and a new constructor.

rdar://67759256

Differential Revision: https://reviews.llvm.org/D86667

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>

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[lldb/Commands] Add ability to run shell command on the host.

This patch introduces the `(-h|--host)` option to the `platform shell`
command. It allows the user to run shell commands from the host p

[lldb/Commands] Add ability to run shell command on the host.

This patch introduces the `(-h|--host)` option to the `platform shell`
command. It allows the user to run shell commands from the host platform
(always available) without putting lldb in the background.

Since the default behaviour of `platform shell` is to run the command of
the selected platform, having such a choice can be quite handy when
debugging remote targets, for instances.

This patch also introduces a `shell` alias, to improve the command
discoverability and make it more convenient to use for the user.

rdar://62856024

Differential Revision: https://reviews.llvm.org/D79659

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>

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[lldb][test] Remove symlink for API tests.

Summary: Moves lldbsuite tests to lldb/test/API.

This is a largely mechanical change, moved with the following steps:

```
rm lldb/test/API/testcases
mkdi

[lldb][test] Remove symlink for API tests.

Summary: Moves lldbsuite tests to lldb/test/API.

This is a largely mechanical change, moved with the following steps:

```
rm lldb/test/API/testcases
mkdir -p lldb/test/API/{test_runner/test,tools/lldb-{server,vscode}}
mv lldb/packages/Python/lldbsuite/test/test_runner/test lldb/test/API/test_runner
for d in $(find lldb/packages/Python/lldbsuite/test/* -maxdepth 0 -type d | egrep -v "make|plugins|test_runner|tools"); do mv $d lldb/test/API; done
for d in $(find lldb/packages/Python/lldbsuite/test/tools/lldb-vscode -maxdepth 1 -mindepth 1 | grep -v ".py"); do mv $d lldb/test/API/tools/lldb-vscode; done
for d in $(find lldb/packages/Python/lldbsuite/test/tools/lldb-server -maxdepth 1 -mindepth 1 | egrep -v "gdbremote_testcase.py|lldbgdbserverutils.py|socket_packet_pump.py"); do mv $d lldb/test/API/tools/lldb-server; done
```

lldb/packages/Python/lldbsuite/__init__.py and lldb/test/API/lit.cfg.py were also updated with the new directory structure.

Reviewers: labath, JDevlieghere

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D71151

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