spec tests: filter out non-applicable test files

tests/suite/Makefile

@@ -5,6 +5,10 @@
 TEST=$(shell find . -name '*.test' | sort)
 TEST_RS=${TEST:.test=.rs}
 
+BLACKLIST += filters # lua filters not implemented
+BLACKLIST += symb # uses ast
+BLACKLIST += sourcepos # not parsable
+
 .PHONY: suite
 suite: mod.rs
 
@@ -12,7 +16,7 @@ mod.rs: ${TEST_RS}
 	printf "" > $@
 	for f in ${TEST}; do \
 		name=$$(basename -s .test $$f); \
-		echo "mod $$name;" >> $@; \
+		echo ${BLACKLIST} | tr ' ' '\n' | grep -q $$name || echo "mod $$name;" >> $@; \
 	done
 
 .test.rs: