[OCaml] Formatting

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193965 91177308-0d34-0410-b5e6-96231b3b80d8
[OCaml] Implement missing LLVMCore APIs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193966 91177308-0d34-0410-b5e6-96231b3b80d8
[OCaml] Documentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193967 91177308-0d34-0410-b5e6-96231b3b80d8
[OCaml] implement Llvm_passmgr_builder, bindings for PassManagerBuilder

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193968 91177308-0d34-0410-b5e6-96231b3b80d8