Install lldb Python module on Windows.

[vadimcn]

Summary

With this change, "script import lldb" succeeds when executed in installed lldb.

[vadimcn]

Ping! Should I ask somebody else to review?

lldb/trunk/scripts/CMakeLists.txt

 file(GLOB SWIG_INTERFACES interface/*.i)
 file(GLOB_RECURSE SWIG_SOURCES *.swig)
 set(SWIG_HEADERS
   ${LLDB_SOURCE_DIR}/include/lldb/API/SBDefines.h
   ${LLDB_SOURCE_DIR}/include/lldb/lldb-defines.h
   ${LLDB_SOURCE_DIR}/include/lldb/lldb-enumerations.h
   ${LLDB_SOURCE_DIR}/include/lldb/lldb-forward.h
   ${LLDB_SOURCE_DIR}/include/lldb/lldb-types.h
   ${LLDB_SOURCE_DIR}/include/lldb/lldb-versioning.h
 )
 
 include(FindPythonInterp)
 
+if (NOT CMAKE_SYSTEM_NAME MATCHES "Windows")
   set(SWIG_PYTHON_DIR
     ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR})
+else()
+  set(SWIG_PYTHON_DIR ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/site-packages)
+endif()
+
 set(SWIG_INSTALL_DIR lib${LLVM_LIBDIR_SUFFIX})
 
 # Generating the LLDB framework correctly is a bit complicated because the
 # framework depends on the swig output.
 if(LLDB_BUILD_FRAMEWORK)
   set(framework_arg --framework --target-platform Darwin)
   set(SWIG_PYTHON_DIR
     ${LLDB_PYTHON_TARGET_DIR}/${LLDB_FRAMEWORK_RESOURCE_DIR}/Python)
COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/prepare_bindings.py
       --swigExecutable=${SWIG_EXECUTABLE}
   VERBATIM
   COMMENT "Python script building LLDB Python wrapper")
 set_source_files_properties(${LLDB_WRAP_PYTHON} PROPERTIES GENERATED 1)
 set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/lldb.py PROPERTIES GENERATED 1)
 
 add_custom_target(swig_wrapper ALL DEPENDS ${LLDB_WRAP_PYTHON})
 
-# Install the LLDB python module on all operating systems (except Windows)
-if (NOT CMAKE_SYSTEM_NAME MATCHES "Windows")
-  install(DIRECTORY ${SWIG_PYTHON_DIR} DESTINATION ${SWIG_INSTALL_DIR})
-endif()
+# Install the LLDB python module
 
 # build Python modules
 add_subdirectory(Python/modules)