[Support] [lldb] Fix thread jump #45326 (#135778)

Fixes #45326 

When you thread jump by calling 
`j +2` or `thread jump --by +2` the offset is not recognised. This
commit fixes that.

---------

Signed-off-by: Ebuka Ezike <yerimyah1@gmail.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/lldb/source/Commands/CommandObjectThread.cpp b/lldb/source/Commands/CommandObjectThread.cpp
index 224c523..57c23d5 100644
--- a/lldb/source/Commands/CommandObjectThread.cpp
+++ b/lldb/source/Commands/CommandObjectThread.cpp
@@ -1649,11 +1649,14 @@ public:
           return Status::FromErrorStringWithFormat("invalid line number: '%s'.",
                                                    option_arg.str().c_str());
         break;
-      case 'b':
+      case 'b': {
+        option_arg.consume_front("+");
+
         if (option_arg.getAsInteger(0, m_line_offset))
           return Status::FromErrorStringWithFormat("invalid line offset: '%s'.",
                                                    option_arg.str().c_str());
         break;
+      }
       case 'a':
         m_load_addr = OptionArgParser::ToAddress(execution_context, option_arg,
                                                  LLDB_INVALID_ADDRESS, &error);