Fix block labeling in JIT debug output * jit-ir.cc (jit_block_list::label): New function. (jit_block::label, jit_block::print): Implementation moved to cc file. * jit-ir.h (jit_block_list::label): New function delcaration. (jit_block::label, jit_block::print): Implementation moved to cc file. (jit_block::print): Make it clear when a block has not been labeled. * pt-jit.cc (jit_inter::inter, jit_infer::construct_ssa, jit_function_info::jit_function_info, jit_info::compile): Use jit_block_list::label.

EXTRA_DIST += \
  m4/module.mk \
  m4/ax_blas.m4 \
  m4/ax_blas_f77_func.m4 \
  m4/ax_compare_version.m4 \
  m4/ax_lapack.m4	\
  m4/ax_pthread.m4 \
  m4/gnulib-cache.m4 \
  m4/libtool.m4 \
  m4/ltoptions.m4 \
  m4/ltsugar.m4 \
  m4/ltversion.m4 \
  m4/lt~obsolete.m4 \
  m4/pkg.m4