[Kaleidoscope] Re-enable Kaleidoscope tests.

These were disabled in r246267 (back in 2015). I suspect that the Win32 issues
that caused them to be disabled at the time have been resovlved, but if not
we can disable them again while we sort those out.

llvm-svn: 354630

Author: lhames

llvm/test/CMakeLists.txt

@@ -12,6 +12,7 @@ llvm_canonicalize_cmake_booleans(
   LLVM_LINK_LLVM_DYLIB
   LLVM_TOOL_LTO_BUILD
   LLVM_USE_INTEL_JITEVENTS
+  LLVM_BUILD_EXAMPLES
   )
 
 configure_lit_site_cfg(

llvm/test/Examples/lit.local.cfg

@@ -1 +1,2 @@
-config.unsupported = True
+if not config.build_examples:
+  config.unsupported = True

llvm/test/lit.site.cfg.py.in

@@ -36,6 +36,7 @@ config.have_zlib = @HAVE_LIBZ@
 config.have_libxar = @HAVE_LIBXAR@
 config.have_dia_sdk = @LLVM_ENABLE_DIA_SDK@
 config.enable_ffi = @LLVM_ENABLE_FFI@
+config.build_examples = @LLVM_BUILD_EXAMPLES@
 config.enable_threads = @LLVM_ENABLE_THREADS@
 config.build_shared_libs = @BUILD_SHARED_LIBS@
 config.link_llvm_dylib = @LLVM_LINK_LLVM_DYLIB@