[lldb] Remove lldb-repro utility

Remove lldb-repro which was used to run the test suite against a
reproducer. The corresponding functionality has been removed from LLDB
so there's no need for the to

[lldb] Remove lldb-repro utility

Remove lldb-repro which was used to run the test suite against a
reproducer. The corresponding functionality has been removed from LLDB
so there's no need for the tool anymore.

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[lldb] Remove -d(ebug) mode from the lldb driver (#83330)

The -d(ebug) option broke 5 years ago when I migrated the driver to
libOption. Since then, we were never check if the option is set. We wer

[lldb] Remove -d(ebug) mode from the lldb driver (#83330)

The -d(ebug) option broke 5 years ago when I migrated the driver to
libOption. Since then, we were never check if the option is set. We were
incorrectly toggling the internal variable (m_debug_mode) based on
OPT_no_use_colors instead.

Given that the functionality doesn't seem particularly useful and nobody
noticed it has been broken for 5 years, I'm just removing the flag.

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[lldb] Remove LLDB reproducers

This patch removes the remaining reproducer code. The SBReproducer class
remains for ABI stability but is just an empty shell. This completes the
removal process outli

[lldb] Remove LLDB reproducers

This patch removes the remaining reproducer code. The SBReproducer class
remains for ABI stability but is just an empty shell. This completes the
removal process outlined on the mailing list [1].

[1] https://lists.llvm.org/pipermail/lldb-dev/2021-September/017045.html

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[lldb] Remove reproducer replay functionality

This is part of a bigger rework of the reproducer feature. See [1] for
more details.

[1] https://lists.llvm.org/pipermail/lldb-dev/2021-September/01704

[lldb] Remove reproducer replay functionality

This is part of a bigger rework of the reproducer feature. See [1] for
more details.

[1] https://lists.llvm.org/pipermail/lldb-dev/2021-September/017045.html

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[lldb] make it easier to find LLDB's python

It is surprisingly difficult to write a simple python script that
can reliably `import lldb` without failing, or crashing. I'm
currently resorting to co

[lldb] make it easier to find LLDB's python

It is surprisingly difficult to write a simple python script that
can reliably `import lldb` without failing, or crashing. I'm
currently resorting to convolutions like this:

def find_lldb(may_reexec=False):
if prefix := os.environ.get('LLDB_PYTHON_PREFIX'):
if os.path.realpath(prefix) != os.path.realpath(sys.prefix):
raise Exception("cannot import lldb.\n"
f" sys.prefix should be: {prefix}\n"
f" but it is: {sys.prefix}")
else:
line1, line2 = subprocess.run(
['lldb', '-x', '-b', '-o', 'script print(sys.prefix)'],
encoding='utf8', stdout=subprocess.PIPE,
check=True).stdout.strip().splitlines()
assert line1.strip() == '(lldb) script print(sys.prefix)'
prefix = line2.strip()
os.environ['LLDB_PYTHON_PREFIX'] = prefix

if sys.prefix != prefix:
if not may_reexec:
raise Exception(
"cannot import lldb.\n" +
f" This python, at {sys.prefix}\n"
f" does not math LLDB's python at {prefix}")
os.environ['LLDB_PYTHON_PREFIX'] = prefix
python_exe = os.path.join(prefix, 'bin', 'python3')
os.execl(python_exe, python_exe, *sys.argv)

lldb_path = subprocess.run(['lldb', '-P'],
check=True, stdout=subprocess.PIPE,
encoding='utf8').stdout.strip()

sys.path = [lldb_path] + sys.path

This patch aims to replace all that with:

#!/usr/bin/env lldb-python
import lldb
...

... by adding the following features:

* new command line option: --print-script-interpreter-info. This
prints language-specific information about the script interpreter
in JSON format.

* new tool (unix only): lldb-python which finds python and exec's it.

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D112973

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[lldb/Test] Add test for man page and lldb --help output