[Lldb-commits] [lldb] [lldb] Change bitfield range character from '-' to ':' in DIL (PR #173410)

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cmtice wrote:

> > Can't you just update the code that currently recognizes "[expr - expr]" to return an error for now (something along the lines that "this syntax is deprecated; please use ':' instead of '-'")? Then in the PR that implements binary subtraction, remove this error message?
> 
> If I understood @jimingham correctly, the idea is to keep this error for an entire major release version, and I would like to implement binary subtraction way sooner than that.

Ok, plan B. :-)  Issue the deprecated message for now.  When you implement the binary subtraction, [expr - expr] will always be subtraction, but have it issue a warning (only if done inside square brackets] that it IS subtraction, and that if people are looking for bitfield subranges they need to use ':' instead.  After entire major release, remove the warning.  Would that satisfy both you and @jimingham ?

https://github.com/llvm/llvm-project/pull/173410