Test for Benchmarking RE engine

STARTTEST
:so small.vim
:if !has("reltime") | qa! | endif
:set nocp cpo&vim
:so bench_re_freeze.vim
:call Measure('samples/re.freeze.txt', '\s\+\%#\@<!$', '+5')
:/^" Benchmark/,$w! benchmark.out
:qa!
ENDTEST

" Benchmark_results:
