[pph] Add preprocessor validation

[Diego Novillo]

On 03/04/2011 05:46 PM, Lawrence Crowl wrote:
> Add preprocessor symbol verification to PPH.
>     Write the used symbol table instead of a dummy PPH file.
>     Reuse PTH code for verifying these symbols are correct.
>     Modify verification to allow a preprocessor symbol to match the PPH
>     file's after value as well as its before value.
>     Stop storing the macro name redundantly within its value.
>     Mark three tests as expected failures as a result.
>     There are 2 unexpected failures and 2 unexpected passes to be fixed.
>
> Add three different PPH output formats,
>     the regular object file, the pretty printed form, and the full dump form.
>     These formats are more stubs than anything else.
>
> Make pretty printing closer to compilable code.
>     Add new flag TDF_VISDEF to request display of visible definitions.
>     For now, they are most particularly struct definitions.
>     Turn off visible definitions for bases of arrays and pointers.
>

OK.


Diego.