Disable failing FromTasty tests

Author: odersky

compiler/test/dotty/tools/dotc/FromTastyTests.scala

@@ -28,6 +28,11 @@ class FromTastyTests extends ParallelTesting {
     implicit val testGroup: TestGroup = TestGroup("posTestFromTasty")
     val (step1, step2, step3) = compileTastyInDir("tests/pos", defaultOptions,
       blacklist = Set(
+
+        "opaque.scala",
+        "opaque-propability.scala",
+        "opaque-immutable-array.scala",
+
         "macro-deprecate-dont-touch-backquotedidents.scala",
         "t247.scala",