Lots of different failures on lots of Linux hosts

We’re getting lots of different failures on lots of Linux buildbots.

I’ve been doing some testing to confirm some suspicions I’ve had about the differences in tests between the builders. This is roughly the situation. Most of the failures are compiler specific. Very few are hypervisor/distro specific. I’m going to mark these as XFAIL as precisely as possible. All of these tests were performed with lldb debug binaries compiled by clang-3.5. The compiler was only varied for the test phase.

XFAIL gcc 4.8/4.9
TestMultithreaded.py
TestPluginCommands.py
TestProcessIO.py
TestRegisterVariables.py
TestTypedefArray.py

XFAIL clang-3.5~3.6
TestCallStdStringFunction.py
TestDataFormatterSkipSummary.py
TestDataFormatterStdIterator.py
TestDataFormatterStdList.py
TestDataFormatterStdString.py
TestSBValuePersist.py
TestStringPrinter.py
TestTypeCompletion.py

XFAIL clang-3.6
Failing Tests (21)
TestAnonymous.py
TestChangeValueAPI.py
TestSharedLib.py
TestSharedLibStrippedSymbols.py
TestUniqueTypes.py

VirtualBox
TestLldbGdbServer.py

Ubuntu 14.10

TestFdLeak.py