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Remove #[cfg(notest)] and use #[cfg(not(test))] to cooincide with #[cfg(debug)]
libstd: convert chained ifs to a match in base64.
Fix typos
fix incorrect region code based on the old 'self

also removes unnecessary casts from the RcMut implementation
rename iter::iter_to_vec to iter::to_vec

it's silly to duplicate the namespace in the fn name
auto merge of #6327 : z0w0/rust/rm-notest, r=brson

Makes it more consistent, imo.
Add space
auto merge of #6332 : huonw/rust/std-base64-match, r=nikomatsakis
Perform expansion before stripping/building a test harness.

This allows macros to create tests and benchmarks.
libcore: rename vec::each(variable) to variable.each
librustdoc: rename vec::each(var) to var.each
libstd: rename vec::each(var) to var.each
libsyntax: rename vec::each(var) to var.each
librustc: rename vec::each(var) to var.each
auto merge of #6328 : recrack/rust/rename_cleanup, r=sanxiyn

rename vec::each(var) to var.each

> librustc, libsyntax, libstd, librustdoc, libcore
auto merge of #6337 : thestinger/rust/fix_region, r=thestinger

also removes unnecessary casts from the RcMut implementation
improve MIPS backend and implement segmented stacks
auto merge of #6343 : thestinger/rust/new_iter, r=brson

it's silly to duplicate the namespace in the fn name
Add uninit intrinsic