The cppcoreguidelines-pro-bounds-array-to-pointer-decay check currently
accepts:
const char *b = i ? "foo" : "foobar";
but not
const char *a = i ? "foo" : "bar";
This is because the AST is slightly different in the latter case (see
https://godbolt.org/z/MkHVvs).
This eliminates the inconsistency by making it accept the latter form
as well.
Fixes https://github.com/llvm/llvm-project/issues/31155.
36af073342