Now every bit in the public API is documented so we can enable doxygen
warnings for undocumented members.

It should only be used by construction algorithms

- Put things into logical groups
- Add cross references from node overview to API docu

They're pointless with the new switch representation introduced a while
ago.

[r28346]

[r28345]

[r28239]

[r28238]

[r28188]

[r28127]

[r28116]

[r28097]

[r28062]

[r28043]

cleanup ircons code; add current_ir_graph independent construction bits; new_ir_graph does not set current_ir_graph anymore

[r28042]

[r28037]

[r28020]

[r27968]

The gain from using an extra Unreachable is rather low, plus the noreturn call must probably be keeped anyway, so revrt it again

[r27898]

Unreachable nodes mark unreachable control flow (after noreturn calls). They
"eat" the memory, saving the two keeps used before.

Works mostly yet (scheduler issues warning about not scheduled Unreachable's)

[r27894]

bring back Carry and Borrow (firm_decomp apparently uses it) and add a note that the backends don't support them

[r27849]

[r27837]

[r27836]

[r27831]

[r27813]

[r27774]

[r27762]

remove todo nodes from public API, they were outdated or wrong and well the public headers are not a good place to put TODOs in

[r27616]

[r27615]

[r27597]

change firm API so the firm_parameter_t struct becomes completely optional and deprecated (because good libraries only export functions and opaque types - this makes bindings to other languages considerably easier)

[r27584]