[r17317]

[r17143]

Added name of translation unit to be environment

[r16552]

[r15628]

Fixed a bug in liveness

[r14701]

[r13883]

fixed include structure (files should include all needed headers - not more and not less)

[r13523]

[r13508]

- Started working on flags

[r12716]

- Replace limit callback in register requirements with a simple bitset
- Fix backends, generators and the rest of the code for the change register
  requirements structure
- Eliminated the custom register_requirement structures in the backend, they
  are pointless now, use the normal arch_register_req_t
- Fix TEMPLATE backend
- Extract emitter framework from ia32 and provide generic header/code for it
- Port TEMPLATE backend to new emitter
- Extract gas specific emit stuff (declarations, sections) from ia32 backend
  and provide it as generic header/code. Make TEMPLATE backend use that
- Remove several FIRM_DBG_REGISTERs from functions which are called very often.
  Before we had millions of string hashtable lookups because of that. The
  prefered way is to have 1 static debug module per file and initialize it in
  the module constructor. No passing around in environment structs and in no
  case should you dynamically register it in single functions.

- refactored backend to store some analysis info about the irg in the be_irg structure, added assure_ and invalidate_ functions for this

scheduler registers it's own options now
stabs debugging output is off by default

added rss scheduling preparation

  of the backend stuff
- Calculate execution frequencies for all irgs early
- Commented out set_Debug stuff in javacoal because it was broken
- Use new execfreq extbb calculation
- some warning fixes

Adapted to the new dependency edges

fixed CRLF

fixed debugging in list scheduler

fixed indents

changed interface names for getting codegen interface
added callbacks to codegen interface for spill/reload lowering