CPP: Add test cases for %ls, %hs.

Author: geoffw0

cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Linux_mixed_byte_wprintf/WrongTypeFormatArguments.expected

@@ -8,3 +8,7 @@
 | tests.cpp:35:36:35:43 | Hello | This argument should be of type 'char *' but is of type 'wchar_t *' |
 | tests.cpp:37:36:37:42 | Hello | This argument should be of type 'char16_t *' but is of type 'char *' |
 | tests.cpp:39:36:39:43 | Hello | This argument should be of type 'char16_t *' but is of type 'wchar_t *' |
+| tests.cpp:42:37:42:44 | Hello | This argument should be of type 'char *' but is of type 'char16_t *' |
+| tests.cpp:43:37:43:44 | Hello | This argument should be of type 'char *' but is of type 'wchar_t *' |
+| tests.cpp:45:37:45:43 | Hello | This argument should be of type 'char16_t *' but is of type 'char *' |
+| tests.cpp:47:37:47:44 | Hello | This argument should be of type 'char16_t *' but is of type 'wchar_t *' |

cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Linux_mixed_byte_wprintf/tests.cpp

@@ -37,4 +37,12 @@ void tests() {
 	swprintf(buffer, BUF_SIZE, u"%S", "Hello"); // BAD: expecting char16_t
 	swprintf(buffer, BUF_SIZE, u"%S", u"Hello"); // GOOD
 	swprintf(buffer, BUF_SIZE, u"%S", L"Hello"); // BAD: expecting char16_t
+
+	swprintf(buffer, BUF_SIZE, u"%hs", "Hello"); // GOOD
+	swprintf(buffer, BUF_SIZE, u"%hs", u"Hello"); // BAD: expecting char
+	swprintf(buffer, BUF_SIZE, u"%hs", L"Hello"); // BAD: expecting char
+
+	swprintf(buffer, BUF_SIZE, u"%ls", "Hello"); // BAD: expecting char16_t
+	swprintf(buffer, BUF_SIZE, u"%ls", u"Hello"); // GOOD
+	swprintf(buffer, BUF_SIZE, u"%ls", L"Hello"); // BAD: expecting char16_t
 }