Merge remote-tracking branch 'bstrie/rimov' into nocomm1

Conflicts:
	src/libsyntax/parse/parser.rs
	src/test/bench/graph500-bfs.rs
	src/test/bench/sudoku.rs
	src/test/run-pass/borrowck-mut-vec-as-imm-slice.rs
	src/test/run-pass/empty-mutable-vec.rs
	src/test/run-pass/foreach-nested.rs
	src/test/run-pass/swap-2.rs