This patch introduces a new scripting affordance in lldb:
`ScriptedFrame`.

This allows user to produce mock stackframes in scripted threads and
scripted processes from a python script.

With this change, StackFrame can be synthetized from different sources:
- Either from a dictionary containing a load address, and a frame index,
  which is the legacy way.
- Or by creating a ScriptedFrame python object.

One particularity of synthezising stackframes from the ScriptedFrame
python object, is that these frame have an optional PC, meaning that
they don't have a report a valid PC and they can act as shells that just
contain static information, like the frame function name, the list of
variables or registers, etc. It can also provide a symbol context.

rdar://157260006

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

This is NFC, I'm modernizing the interface before I add to it in a
subsequent commit.

This patch re-lands #105449 and fixes the various test failures.

---------

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

...and "[lldb/Interpreter] Introduce `ScriptedStopHook{,Python}Interface` & make use of it (#105449)"

This reverts commit 76b827bb4d5b4cc4d3229c4c6de2529e8b156810, and commit 1e131ddfa8f1d7b18c85c6e4079458be8b419421
because the first commit caused the test command-stop-hook-output.test to fail.

This patch introduces new `ScriptedStopHook{,Python}Interface` classes
that make use of the Scripted Interface infrastructure and makes use of
it in `StopHookScripted`.

It also relax the requirement on the number of argument for initializing
scripting extension if the size of the interface parameter pack contains
1 less element than the extension maximum number of positional arguments
for this initializer.
This addresses the cases where the embedded interpreter session
dictionary is passed to the extension initializer which is not used most
of the time.

---------

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

This patch tries to fix an issue with the windows debug builds where the
PDB file for python scripted interfaces cannot be opened since its path
length exceed the windows `MAX_PATH` limit:

https://github.com/llvm/llvm-project/pull/101672#issuecomment-2289481324

This patch addresses the issue by building all the interfaces as a
single library plugin that initiliazes each component as part of its
`Initialize` method, instead of building each interface as its own
library plugin.

This keeps the build artifact path length smaller while respecting the
naming convention and without making any exception in the build system.

Fixes #104895.

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>