[docs] Remove incorrect information about lit.

Lit does support redirects in the 2>&1 style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177403 91177308-0d34-0410-b5e6-96231b3b80d8
Cleanup PPC64 unaligned i64 load/store

Remove an accidentally-added instruction definition and add a comment in the
test case. This is in response to a post-commit review by Bill Schmidt.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177404 91177308-0d34-0410-b5e6-96231b3b80d8
The Linker interface has some dead code after the cleanup in r172749
(and possibly others). The attached patch removes it, and tries to
update comments accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177406 91177308-0d34-0410-b5e6-96231b3b80d8
Fix for r177390: map values are pointers, use DeleteContainerSeconds() instead of .clear()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177409 91177308-0d34-0410-b5e6-96231b3b80d8