[LV] Convert all but one opt remark in Legality to new streaming interface
[LV] Convert all but one opt remark in Legality to new streaming interface

The last one remaining after which emitAnalysis can be removed is when
we convert the LAA's report to a vectorization report.  This requires
converting LAA to the new interface first.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@282726 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,apple/swift-llvm,llvm-mirror/llvm,llvm-mirror/llvm,apple/swift-llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,apple/swift-llvm,llvm-mirror/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm