[msan] Handle param-tls overflow.

ParamTLS (shadow for function arguments) is of limited size. This change
makes all arguments that do not fit unpoisoned, and avoids writing
past the end of a TLS buffer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220351 91177308-0d34-0410-b5e6-96231b3b80d8
Try to fix documentation bot warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220352 91177308-0d34-0410-b5e6-96231b3b80d8
Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220353 91177308-0d34-0410-b5e6-96231b3b80d8
Fix ShTest parsing error when a keyword line doesn't end with a newline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220354 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Bump version number.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220355 91177308-0d34-0410-b5e6-96231b3b80d8