Fix an unresolved reference error to fmod/fmodf for some tests.
librustc: PNaCl's datalayout specifies 4 byte alignment for v128 types,
breaking our alignment hack. Fortunately, since structures are for the
most part removed, a minor hack while targeting PNaCl suffices.
librustc: Fix unwinder_private_data_size sizes.
libstd: PNaCl's SJLJ EH implementation doesn't export __gcc_personality_v0,
causing unresolved error at link time.
LLVM: Update commit.
librustc: Allow PNaCl to handle expand-small-arguments, giving it the
benefit of running after invokes have been lowered by PNaCl's SJLJ EH pass.
librustc: Final switch to SJLJ EH. Don't use libcompiler-rt on
le32-unknown-nacl (toolchain provided).