debug: Add support for DebugInformation

This introduces DebugInformation to the MethodInfo class. The
DebugInformation can provide the name of arguments and the
name of temporaries in methods and blocks. This is useful for
debuggers.

2013-06-24  Gwenael Casaccio <gwenael.casaccio@gmail.com>

	* kernel/DebugInformation.st: Add DebugInformation.
	* kernel/CompildMeth.st: Add DebugInformation support.
	* kernel/CompiledBlk.st: Add DebugInformation support.
	* kernel/MethodInfo.st: Add DebugInformation support.
	* packages.xml: Bootstrap information for DebugInformation.
	* tests/stcompiler.ok: Tests for DebugInformations.
	* tests/stcompiler.st: Tests for DebugInformations.

2013-06-24  Gwenael Casaccio <gwenael.casaccio@gmail.com>

	* libgst/comp.c: Add arguments and temporaries name in DebugInformation.
	* libgst/comp.h: Add a debugInfo state in the compiler.
	* libgst/dict.c: Add _gst_identity_dictionary_new.
	* libgst/dict.h: Add _gst_identity_dictionary_new.
	* libgst/files.c: Bootstrap information for DebugInformation.