[lldb][test] Disable MD5 test for old versions of Visual Studio (#94325)

In older versions there is this problem:

https://developercommunity.visualstudio.com/t/c-shared-state-futuresstate-default-constructs-the/60897

Which prevents us making a future out of a result type. There's
no good workaround so just don't compile this for older versions.

Author: DavidSpickett

lldb/unittests/Process/gdb-remote/GDBRemoteCommunicationClientTest.cpp

@@ -593,6 +593,10 @@ TEST_F(GDBRemoteCommunicationClientTest, WriteMemoryTags) {
                  "E03", false);
 }
 
+// Prior to this verison, constructing a std::future for a type without a
+// default constructor is not possible.
+// https://developercommunity.visualstudio.com/t/c-shared-state-futuresstate-default-constructs-the/60897
+#if !defined(_MSC_VER) || _MSC_VER >= 1932
 TEST_F(GDBRemoteCommunicationClientTest, CalculateMD5) {
   FileSpec file_spec("/foo/bar", FileSpec::Style::posix);
   std::future<ErrorOr<MD5::MD5Result>> async_result = std::async(
@@ -614,3 +618,4 @@ TEST_F(GDBRemoteCommunicationClientTest, CalculateMD5) {
   EXPECT_EQ(expected_low, result->low());
   EXPECT_EQ(expected_high, result->high());
 }
+#endif