Fix the Manifest.

Manifest.txt

@@ -35,29 +35,29 @@ lib/runtime/stack.rb
 lib/runtime/stackless.rb
 lib/stdlib/benchmark.scm
 lib/stdlib/birdhouse.scm
-test/arithmetic.scm
-test/benchmarks.scm
-test/booleans.scm
-test/closures.scm
-test/conditionals.scm
-test/continuations.scm
-test/define_functions.scm
-test/define_values.scm
-test/delay.scm
-test/equivalence.scm
-test/file_loading.scm
-test/functional.scm
-test/hygienic.scm
-test/let.scm
-test/lib.scm
-test/lists.scm
-test/macro-helpers.scm
-test/macros.scm
-test/numbers.scm
+test/helpers/lib.scm
+test/helpers/macro-helpers.scm
+test/helpers/vars.scm
+test/scheme_tests/arithmetic.scm
+test/scheme_tests/benchmarks.scm
+test/scheme_tests/booleans.scm
+test/scheme_tests/closures.scm
+test/scheme_tests/conditionals.scm
+test/scheme_tests/continuations.scm
+test/scheme_tests/define_functions.scm
+test/scheme_tests/define_values.scm
+test/scheme_tests/delay.scm
+test/scheme_tests/equivalence.scm
+test/scheme_tests/file_loading.scm
+test/scheme_tests/functional.scm
+test/scheme_tests/hygienic.scm
+test/scheme_tests/let.scm
+test/scheme_tests/lists.scm
+test/scheme_tests/macros.scm
+test/scheme_tests/numbers.scm
+test/scheme_tests/strings.scm
+test/scheme_tests/unhygienic.scm
+test/scheme_tests/vectors.scm
 test/plt-macros.txt
-test/strings.scm
 test/test_heist.rb
-test/unhygienic.scm
-test/vars.scm
-test/vectors.scm