(blocked on #5121) add stronger region annotations to the maps

[thestinger]

No description provided.

[catamorphism]

@thestinger Sorry, but can you re-rebase?

[thestinger]

I'm having trouble getting the core-map.rs test to compile right now, I think it might be a bug.

/home/strcat/projects/rust/src/test/bench/core-map.rs:26:22: 26:23 error: Illegal lifetime 'r: only 'static is allowed here
/home/strcat/projects/rust/src/test/bench/core-map.rs:26 fn ascending<M: Map<'r, uint, uint>>(map: &mut M, n_keys: uint) {
                                                                               ^
/home/strcat/projects/rust/src/test/bench/core-map.rs:48:23: 48:24 error: Illegal lifetime 'r: only 'static is allowed here
/home/strcat/projects/rust/src/test/bench/core-map.rs:48 fn descending<M: Map<'r, uint, uint>>(map: &mut M, n_keys: uint) {
                                                                                ^
/home/strcat/projects/rust/src/test/bench/core-map.rs:70:19: 70:20 error: Illegal lifetime 'r: only 'static is allowed here
/home/strcat/projects/rust/src/test/bench/core-map.rs:70 fn vector<M: Map<'r, uint, uint>>(map: &mut M, n_keys: uint, dist: &[uint]) {

@nikomatsakis: Am I doing something wrong there?

[nikomatsakis]

We mentioned it on IRC, but for the record this is #5121

[brson]

@thestinger What should we do to move this forward?

[thestinger]

@brson: this is still blocked on #5121 but I'll just reopen a new one when it's fixed. This is too out-of-date now.