[PATCH] Eliminate BinaryTypeTraitExpr

[Alp Toker]

Forgot to mention, this is built on top of the MSVC 2013 type trait 
support patch which has yet to land. Delta should be small though.

Alp.

On 13/12/2013 14:56, Alp Toker wrote:
> There's nothing special about type traits accepting two arguments.
>
> The attached patch eliminates BinaryTypeTraitExpr and switches all 
> related handling over to TypeTraitExpr.
>
> Also fixes a CodeGen failure with variadic type traits appearing in a 
> non-constant expression.
>
> The BTT/TT prefix distinction is retained for the time being.
>
> This is part of the ongoing work to unify type traits.
>
>  26 files changed, 62 insertions(+), 289 deletions(-)
>
> Alp.
>

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