[CI] Fixed windows build & test (#2434)

* [CI] Fixed windows build & test

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Co-authored-by: Taichi Gardener <taichigardener@gmail.com>

taichi/runtime/llvm/runtime.cpp

@@ -2,6 +2,16 @@
 // The generated bitcode will likely get inlined for performance.
 
 #if !defined(TI_INCLUDED) || !defined(_WIN32)
+// The latest MSVC(Visual Studio 2019 version 16.10.1, MSVC 14.29.30037)
+// uses llvm-11 as requirements. Check this link for details:
+// https://github.com/microsoft/STL/blob/1866b848f0175c3361a916680a4318e7f0cc5482/stl/inc/yvals_core.h#L550-L561.
+// However, we use llvm-10 for now and building will fail due to clang version
+// mismatch. Therefore, we workaround this problem by define such flag to skip
+// the version check.
+// NOTE(#2428)
+#if defined(_WIN32) || defined(_WIN64)
+#define _ALLOW_COMPILER_AND_STL_VERSION_MISMATCH
+#endif
 
 #include <atomic>
 #include <cstdint>