Fixed a Scheme translation bug; cleaned compilation with GCC 4.

Fixed a Scheme translation bug; cleaned compilation with GCC 4.

* module/language/scheme/translate.scm (trans-pair): In the `set!' case,
  when a procedure-with-setter is passed, call `trans:pair' with an
  actual pair.  This fixes a long-lasting bug which prevented compilation
  of `set!' statements with procedures-with-setter (this showed up when
  compiling `(system vm assemble)').

* module/system/base/compile.scm: Added `objcode->u8vector' to the
  `#:select' clause.

* module/system/base/syntax.scm: Cosmetic changes.

* module/system/vm/assemble.scm (preprocess): Removed debugging
  statements.

* src/frames.c: Cosmetic changes.

* src/frames.h (SCM_FRAME_SET_DYNAMIC_LINK): New.

* src/objcodes.c: Use `scm_t_uint8' instead of `char' when relevant.

* src/vm.c (vm_heapify_frames_1): Use `SCM_FRAME_SET_DYNAMIC_LINK ()'.

* src/vm_loader.c: Added casts to mute GCC 4 warnings.

* testsuite/run-vm-tests.scm (*scheme*): Renamed to `%scheme'.
  (run-test-from-file): Renamed to `compile/run-test-from-file'.
  (run-vm-tests): Run each test using both the VM and the interpreter;
  compare the results.

* testsuite/t-proc-with-setter.scm: Try out `get/set'.

* doc/Makefile.am (info_TEXINFOS): New.

* doc/guile-vm.texi: Added index entries and indices.

* doc/texinfo.tex: New file.

git-archimport-id: lcourtes@laas.fr--2005-mobile/guile-vm--mobile--0.6--patch-5