fix dotnet on msys

Author: waruqi

tests/projects/csharp/console/test.lua

@@ -1,6 +1,9 @@
 import("detect.sdks.find_dotnet")
 
 function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
     local dotnet = find_dotnet()
     if dotnet and dotnet.sdkver then
         t:build()

tests/projects/csharp/console_with_runtime_json/test.lua

@@ -1,6 +1,9 @@
 import("detect.sdks.find_dotnet")
 
 function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
     local dotnet = find_dotnet()
     if dotnet and dotnet.sdkver then
         t:build()

tests/projects/csharp/exe_with_library/test.lua

@@ -1,6 +1,9 @@
 import("detect.sdks.find_dotnet")
 
 function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
     local dotnet = find_dotnet()
     if dotnet and dotnet.sdkver then
         t:build()

tests/projects/csharp/exe_with_package/test.lua

@@ -1,6 +1,9 @@
 import("detect.sdks.find_dotnet")
 
 function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
     local dotnet = find_dotnet()
     if dotnet and dotnet.sdkver then
         t:build()

tests/projects/csharp/multiple_library/test.lua

@@ -1,6 +1,9 @@
 import("detect.sdks.find_dotnet")
 
 function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
     local dotnet = find_dotnet()
     if dotnet and dotnet.sdkver then
         t:build()

tests/projects/csharp/web_project/test.lua

@@ -1,6 +1,9 @@
 import("detect.sdks.find_dotnet")
 
 function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
     local dotnet = find_dotnet()
     if dotnet and dotnet.sdkver then
         t:build()