Convert core::pipes::{Packet,Chan_,Port_} into structs
Convert pipes::Buffer into a struct
Fix another typo
convert io wrapper records into structs
Convert dlist records into structs
syntax/rustc: Less copy
Merge pull request #4613 from erickt/incoming

convert most of libcore and libstd to structs, work around tzset race
comments: Convert XXXes to FIXMEs
clean up LinearMap implementation
Merge pull request #4623 from thestinger/map

clean up LinearMap implementation
replace ConstVector trait with the Container trait
implement Mutable trait for vec
std: Fix broken Windows function
remove remaining is_not_empty functions/methods
core: Mop up Windows breakage
rustc: Less copy
rustc: Address an XXX in middle::mode
std: Mop up Mac/Linux breakage
Stop using oldcomm in uv_global_loop tests
use mutable function argument syntax in treemap