Clang: Re-enable tests which do not fail anymore

Change-Id: I1f8f396eeb8e97a8910bc2bd454227a395330f31
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

tests/unit/unittest/cursor-test.cpp

@@ -185,7 +185,7 @@ TEST_F(Cursor, BriefComment)
     ASSERT_THAT(cursor.briefComment(), Eq("A brief comment"));
 }
 
-TEST_F(Cursor, DISABLED_ON_WINDOWS(RawComment))
+TEST_F(Cursor, RawComment)
 {
     auto cursor = translationUnit.cursorAt(Utf8StringLiteral(TESTDATA_DIR"/cursor.h"), 10, 7);