load msvc toolchain with specific plat/arch.

Author: Redbeanw44602

xmake/modules/detect/sdks/find_dia_sdk.lua

@@ -41,7 +41,7 @@ function _find_sdkdir(sdkdir, opt)
             end
         end
         if not vsdir then
-            local msvc = toolchain.load("msvc")
+            local msvc = toolchain.load("msvc", {plat = config.get("plat"), arch = opt.arch or config.get("arch")})
             if msvc and msvc:check() then
                 local vcvars = msvc:config("vcvars")
                 if vcvars then