[cfe-commits] [patch] Make it so that some warnings in DiagGroup<"all"> aren't on by default

[Nico Weber]

Hi,

-Wall is defined like this:

  def : DiagGroup<"all", [Most, Parentheses, Switch]>;

This makes sense, but _all_ of the warnings in Parentheses and Switch
are on by default, so -Wall is currently identical to -Wmost. With
this patch, some of the warnings in that group become DefaultIgnore,
so that they are only active if -Wall is specified. It looks like that
was the intention for most of them, but since DiagGroup<"all"> is a
bit confusing in this regard, they got always-enabled by accident (as
far as I can tell).

Ok?

Nico