Depends upon what you mean by "rise to prominence." It is not widely used (yet), but [Rust](http://rust-lang.org http://rust-lang.org) is a former research proj

Depends upon what you mean by "rise to prominence." It is not widely used (yet), but [Rust](http://rust-lang.org http://rust-lang.org) is a former research project that is now being developed/used by a major tech company (mozilla) to implementation next-generation web browser. It's main (only) implementation is built on LLVM.