[msan] Optionally disable 2 tests (dlopen & gethostbyname).


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185076 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: remove non-existent functions from syms file


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185077 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: revert dynamic symbols file to the old incorrect one
full proper list of dynamic symbols crashes old gold (see bug 16468).
the culprit is 'memcpy' function, if it's added to syms file, gold crashes



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185078 91177308-0d34-0410-b5e6-96231b3b80d8