swift

b2988f6e - [diags][cxx-interop] Update diagnostic for 'begin' to suggest using a for-loop instead.

[diags][cxx-interop] Update diagnostic for 'begin' to suggest using a for-loop instead. Does not fix the fix-it. The current fix it will be left as a stop-gap solution and we can hopefully update this fix it in the near future to actually plop in a for loop (too much work for this PR though).