Currently, it can be little difficult to understand why a command in
lldb-commands.py stops working. For example, at the moment running the
jlh command results in an empty line:

$ lldb --one-line "command script import ../../tools/lldb_commands.py" \
     v8_hello_world
(lldb) br s -f hello-world.cc -l 49
(lldb) jlh script

(lldb)

With this commit this would instead display the following error message:

(lldb) jlh script
Failed to evaluate command
_v8_internal_Print_Object(*(v8::internal::Object**)(*(void*)(script))) :
error: cannot cast from type 'v8::Local<v8::Script>' to pointer type
'void *'

The output is really only two lines but I've wrapped the lines here so
they don't exceed the 72 column width. I'll follow up with a commit to
fix the issue reported.

Change-Id: I634a412b616dad7cadd74dce36418d27c1997777
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2083477Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68093}