Name core tests consistently

Now, given a concept xyz,
* the main test file is called test_xyz.cc
* the executable is called test_xyz, and
* the ctest test is called text_xyz.

server/core/test/test_hint.cc

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2016 MariaDB Corporation Ab
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+ *
+ * Change Date: 2020-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2 or later of the General
+ * Public License.
+ */
+
+/**
+ *
+ * @verbatim
+ * Revision History
+ *
+ * Date         Who                 Description
+ * 08-10-2014   Martin Brampton     Initial implementation
+ *
+ * @endverbatim
+ */
+
+// To ensure that ss_info_assert asserts also when builing in non-debug mode.
+#if !defined(SS_DEBUG)
+#define SS_DEBUG
+#endif
+#if defined(NDEBUG)
+#undef NDEBUG
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <maxscale/hint.h>
+#include <maxscale/alloc.h>
+
+/**
+ * test1    Allocate table of users and mess around with it
+ *
+  */
+int mxs_log_flush_sync(void);
+static int
+test1()
+{
+    HINT    *hint;
+
+    /* Hint tests */
+    ss_dfprintf(stderr,
+                "testhint : Add a parameter hint to a null list");
+    char* name = MXS_STRDUP_A("name");
+    hint = hint_create_parameter(NULL, name, "value");
+    MXS_FREE(name);
+    mxs_log_flush_sync();
+    ss_info_dassert(NULL != hint, "New hint list should not be null");
+    ss_info_dassert(0 == strcmp("value", (char*)hint->value), "Hint value should be correct");
+    ss_info_dassert(0 != hint_exists(&hint, HINT_PARAMETER), "Hint of parameter type should exist");
+    ss_dfprintf(stderr, "\t..done\nFree hints.");
+    if (NULL != hint)
+    {
+        hint_free(hint);
+    }
+    mxs_log_flush_sync();
+    ss_dfprintf(stderr, "\t..done\n");
+
+    return 0;
+
+}
+
+int main(int argc, char **argv)
+{
+    int result = 0;
+
+    result += test1();
+
+    exit(result);
+}
+