Update LLDB Windows buildbot to use MSVC 2015 and Python 3.5

[zturner]

Summary

Hi Galina,

I've already got everything ready to go on the slave itself, so this CL can go in any time and it should start working. LMK if this looks ok.

[gkistanova]

LGTM

Thanks

Galina

[Eugene.Zelenko]

Committed in r259246.

buildbot/osuosl/master/config/builders.py

 # LLDB builders.
 def _get_lldb_builders():
     return [
-        {'name': "lldb-x86-windows-msvc",
+        {'name': "lldb-x86-windows-msvc2015",
          'slavenames': ["zturner-win2008"],
          'builddir': "lldb-windows-x86",
          'factory': LLDBBuilder.getLLDBWindowsCMakeBuildFactory(config='Debug')},

zorg/buildbot/builders/LLDBBuilder.py

             jobs="%(jobs)s",
 
             # Source directory containing a built python
-            python_source_dir=r'C:/src/python',
+            python_source_dir=r'C:/Python35',
 
             # Default values for VS devenv and build configuration
-            vs=r"""%VS120COMNTOOLS%""",
+            vs=r"""%VS140COMNTOOLS%""",
             config='Release',
             target_arch='x86',
 

                 doStepIf=cleanBuildRequested
                 ))
 
-    if config.lower() == 'release':
-        python_lib = 'python27.lib'
-        python_exe = 'python.exe'
-    elif config.lower() == 'debug':
-        python_lib = 'python27_d.lib'
-        python_exe = 'python_d.exe'
-
-    python_lib = os.path.join(python_source_dir, 'PCbuild', python_lib)
-    python_exe = os.path.join(python_source_dir, 'PCbuild', python_exe)
-    python_include = os.path.join(python_source_dir, 'Include')
-
     # Use batch files instead of ShellCommand directly, Windows quoting is
     # borked. FIXME: See buildbot ticket #595 and buildbot ticket #377.
     f.addStep(batch_file_download.BatchFileDownload(name='cmakegen',
                                 command=[cmake, "-G", "Ninja", "../llvm",
                                          "-DCMAKE_BUILD_TYPE="+config,
-                                         # Need to use our custom built version of python
-                                         '-DPYTHON_LIBRARY=' + python_lib,
-                                         '-DPYTHON_INCLUDE_DIR=' + python_include,
-                                         '-DPYTHON_EXECUTABLE=' + python_exe,
+                                         '-DPYTHON_HOME=' + python_source_dir,
                                          "-DCMAKE_INSTALL_PREFIX=../install"]
                                          + extra_cmake_args,
                                 workdir=build_dir))