[stable] Backports for 1.12.1#37173

Merged

brson merged 10 commits intorust-lang:stablefrom

brson:stable-next

Oct 19, 2016

Commits on Oct 14, 2016

loosen assertion against proj in collector

nikomatsakis
authored and
brson
committed
force `i1` booleans to `i8` when comparing

nikomatsakis
authored and
brson
committed
LLVM: Backport "[SimplifyCFG] Correctly test for unconditional branches in GetCaseResults"

michaelwoerister
authored and
brson
committed

Commits on Oct 18, 2016

stop having identity casts be lexprs

arielb1
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brson
committed
Temporary fix for metadata decoding for struct constructors

petrochenkov
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brson
committed
Bump version to 1.12.1
brson
committed
Fix ICE by injecting bitcasts if types mismatch when building invokes or calls.

pnkfelix
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brson
committed
Inject bitcast if types mismatch when building a store instruction.

pnkfelix
authored and
brson
committed
Some tests to check that lifetime parametric fn's do not trip up LLVM.

pnkfelix
authored and
brson
committed
debuginfo: Create debuginfo for re-aggregated spread_arg instead of for the individual pieces.

michaelwoerister
authored and
brson
committed