Add implicit foralls for bidir, update and unify pipeline

tests/Main.hs

@@ -0,0 +1,16 @@
+module Main where
+
+import           Test.Hspec
+import           TestAnnForall        (testAnnForall)
+import           TestRenamer          (testRenamer)
+import           TestReportForall     (testReportForall)
+import           TestTypeCheckerBidir (testTypeCheckerBidir)
+import           TestTypeCheckerHm    (testTypeCheckerHm)
+
+main = hspec $ do
+  testReportForall
+  testAnnForall
+  testRenamer
+  testTypeCheckerBidir
+  testTypeCheckerHm
+