unittests: VersionRange tests gardening.

Fix test naming and make includes more specific. NFC.

Author: tshortli

unittests/AST/CMakeLists.txt

@@ -9,7 +9,7 @@ add_swift_unittest(SwiftASTTests
   SourceLocTests.cpp
   TestContext.cpp
   TypeMatchTests.cpp
-  VersionRangeLattice.cpp
+  VersionRangeTests.cpp
   ImportTests.cpp
 )
 

unittests/AST/VersionRangeLattice.cpp renamed to unittests/AST/VersionRangeTests.cpp

@@ -1,4 +1,4 @@
-#include "swift/AST/AvailabilityScope.h"
+#include "swift/AST/AvailabilityRange.h"
 #include "gtest/gtest.h"
 
 using namespace swift;