tests: Add missing symlinks

diff --git a/tests/rygel-logical-expression.vala b/tests/rygel-logical-expression.vala
new file mode 120000 (symlink)
index 0000000..0a0e854
--- /dev/null
+++ b/tests/rygel-logical-expression.vala
@@ -0,0 +1 @@
+../src/librygel-server/rygel-logical-expression.vala
\ No newline at end of file

diff --git a/tests/rygel-search-criteria-parser.vala b/tests/rygel-search-criteria-parser.vala
new file mode 120000 (symlink)
index 0000000..8112916
--- /dev/null
+++ b/tests/rygel-search-criteria-parser.vala
@@ -0,0 +1 @@
+../src/librygel-server/rygel-search-criteria-parser.vala
\ No newline at end of file