Move prolog tests in its own top-level directory

Change-Id: Id38c725ee440c1ffb002889a61c8f4f7bab8c226
diff --git a/gerrit-server/BUILD b/gerrit-server/BUILD
index c0e19b5..d410acb 100644
--- a/gerrit-server/BUILD
+++ b/gerrit-server/BUILD
@@ -236,7 +236,8 @@
 junit_tests(
     name = "prolog_tests",
     srcs = PROLOG_TESTS,
-    resources = glob(["src/test/resources/com/google/gerrit/rules/**/*"]),
+    resource_strip_prefix = "prologtests",
+    resources = ["//prologtests:gerrit_common_test"],
     deps = TESTUTIL_DEPS + [
         "//prolog:gerrit-prolog-common",
         ":prolog_test_case",
diff --git a/prologtests/BUILD b/prologtests/BUILD
new file mode 100644
index 0000000..89f83cc
--- /dev/null
+++ b/prologtests/BUILD
@@ -0,0 +1,5 @@
+filegroup(
+    name = "gerrit_common_test",
+    srcs = ["com/google/gerrit/rules/gerrit_common_test.pl"],
+    visibility = ["//visibility:public"],
+)
diff --git a/gerrit-server/src/test/resources/com/google/gerrit/rules/gerrit_common_test.pl b/prologtests/com/google/gerrit/rules/gerrit_common_test.pl
similarity index 100%
rename from gerrit-server/src/test/resources/com/google/gerrit/rules/gerrit_common_test.pl
rename to prologtests/com/google/gerrit/rules/gerrit_common_test.pl