improve result.md
Merge pull request #1 from lefessan/fabrice-chambart

improve result.md
A few more pure expressions are detected
Few missing optimisable match cases
Small fix in inlining heuristics
Misc.uniq_sort
Clambdagen: Avoid copying failaction when it is not correct
Flambda.same: add physical equality
Allow jumping out of try/with
Fix in simplify
Flambdasimplify: handle comparison with constant pointers
Add Flambdaifstaticraise passes
Flambdaifstaticraise: More precise boolean approximation
result.md: Describe static exception transformations