[lldb] [llvm] [lldb] Implement CLI support for reverse-continue (PR #132783)

[via llvm-commits]

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@@ -744,6 +744,10 @@ let Command = "process continue" in {
     Arg<"BreakpointIDRange">, Desc<"Specify a breakpoint to continue to, temporarily "
     "ignoring other breakpoints.  Can be specified more than once.  "
     "The continue action will be done synchronously if this option is specified.">;
+  def thread_continue_forward : Option<"forward", "F">, Group<3>,
+    Desc<"Execute in forward direction">;
+  def thread_continue_reverse : Option<"reverse", "R">, Group<3>,
+    Desc<"Execute in reverse direction">;
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jimingham wrote:

Putting this in group 3 means that you can't BOTH say "go backwards" and "keep going till you hit this breakpoint", which seems unfortunate.  Formally, there should be 4 sets (that the problem with this way of doing the sets...) `-i -F`, `-i -R`, `-b -F` and `-b -R`.  I'm not at all sure why -b & -i are not compatible.  Seems like there should really be two `-i -b -F` and `-i -b -R`...

https://github.com/llvm/llvm-project/pull/132783