o lldbtest.py:

Assign the test method name to self.testMethodName.  This can be useful for the
test directory (see test/types for a good example) which houses a bunch of executables
compiled from different source files.  The default build action is to create a.out as
the binary executable, which can confuse the module cacheing mechanism and result in
the debugger getting a stale image as the target to be debugged, and chaos ensues.

o AbstractBase.py, TestThreadAPI.py:

Use self.testMethodName to our advantage.

o TestLoadUnload.py:

Add expected failure marker to test case test_modules_search_paths().

llvm-svn: 133768