2 files changed, 8 insertions, 8 deletions
diff --git a/src/dotty/tools/dotc/core/Denotations.scala b/src/dotty/tools/dotc/core/Denotations.scala
index 63f2976b6..bbbbaa74b 100644
--- a/src/dotty/tools/dotc/core/Denotations.scala
+++ b/src/dotty/tools/dotc/core/Denotations.scala
@@ -171,7 +171,7 @@ object Denotations {
      *  someone does a findMember on a subclass.
      */
     def enter(sym: Symbol)(implicit ctx: Context) = {
-      require(!flags.hasFlagIn(Frozen))
+      require(!(flags intersects Frozen))
       decls enter sym
       if (definedFingerPrintCache != null)
         includeName(definedFingerPrintCache, sym.name)
@@ -184,7 +184,7 @@ object Denotations {
      *  someone does a findMember on a subclass.
      */
     def delete(sym: Symbol)(implicit ctx: Context) = {
-      require((flags & Frozen) == Flags.Empty)
+      require(!(flags intersects Frozen))
       decls unlink sym
       if (definedFingerPrintCache != null)
         computeDefinedFingerPrint
diff --git a/src/dotty/tools/dotc/core/Flags.scala b/src/dotty/tools/dotc/core/Flags.scala
index 6bf0c1db8..f4a111632 100644
--- a/src/dotty/tools/dotc/core/Flags.scala
+++ b/src/dotty/tools/dotc/core/Flags.scala
@@ -23,27 +23,27 @@ object Flags {
 
     def & (that: FlagSet) = FlagSet(bits & that.bits)
 
-    def hasFlagIn(flags: FlagSet) = {
+    def intersects(flags: FlagSet) = {
       val fs = bits & flags.bits
       (fs & TYPEFLAGS) != 0 &&
       fs > TYPEFLAGS
     }
 
-    def hasFlagIn(flags: FlagSet, butNotIn: FlagSet) = {
+    def intersects(flags: FlagSet, butNot: FlagSet) = {
       val fs = bits & flags.bits
       (fs & TYPEFLAGS) != 0 &&
       fs > TYPEFLAGS &&
-      (bits & butNotIn.bits) == 0
+      (bits & butNot.bits) == 0
     }
 
-    def hasAllFlags(flags: FlagSet) = {
+    def contains(flags: FlagSet) = {
       val fs = bits & flags.bits
       (fs & TYPEFLAGS) != 0 &&
       (fs >> TYPESHIFT) == (flags.bits >> TYPESHIFT)
     }
 
-    def hasAllFlags(flags: FlagSet, butNotIn: FlagSet) = {
-      val fs = bits & (flags.bits | butNotIn.bits)
+    def contains(flags: FlagSet, butNot: FlagSet) = {
+      val fs = bits & (flags.bits | butNot.bits)
       (fs & TYPEFLAGS) != 0 &&
       (fs >> TYPESHIFT) == (flags.bits >> TYPESHIFT)
     }