Vk: yeah well of course we can't encode Magnum version into VK_VERSION.

Sigh.

src/Magnum/Vk/Test/VersionTest.cpp

@@ -37,6 +37,7 @@ struct VersionTest: TestSuite::Tester {
     explicit VersionTest();
 
     void packing();
+    void packingMagnumVersion();
     void comparison();
 
     void debug();
@@ -44,6 +45,7 @@ struct VersionTest: TestSuite::Tester {
 
 VersionTest::VersionTest() {
     addTests({&VersionTest::packing,
+              &VersionTest::packingMagnumVersion,
               &VersionTest::comparison,
 
               &VersionTest::debug});
@@ -70,6 +72,16 @@ void VersionTest::packing() {
     #endif
 }
 
+void VersionTest::packingMagnumVersion() {
+    Version a = version(2019, 10, 1506);
+    {
+        CORRADE_EXPECT_FAIL("Vulkan version encoding can't fit full years.");
+        CORRADE_COMPARE(versionMajor(a), 2019);
+    }
+    CORRADE_COMPARE(versionMinor(a), 10);
+    CORRADE_COMPARE(versionPatch(a), 1506);
+}
+
 void VersionTest::comparison() {
     CORRADE_VERIFY(!(version(1, 5, 3) < version(1, 5, 3)));
     CORRADE_VERIFY(!(version(1, 5, 3) > version(1, 5, 3)));