[cfe-dev] [PATCH] Allow unnamed structure or union fields within structs/unions in gnu99 mode

[Pierre d'Herbemont]

Hi,

This patch enables unnamed structure or union fields withing structs/ 
unions when -std=gnu99 is used. Cf [1].

Note, as stated in [1], struct { int a; union { int a; } } is  
discouraged, but won't produce any error nor warning.
It is unclear for me that we really want to add anonymous structure  
support in RecordDecl::getMember, as implementation could vary given  
the language standard. Yet, not implementing here could lead to easy  
and unoticeable mistakes if the caller doesn't implement anonymous  
structure resolving.

I'll be happy to ear your thoughts...

Pierre.

[1] http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Unnamed-Fields.html
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