move caseAccessors from TypeUtils

They are in SymUtils

Author: DarkDimius

src/dotty/tools/dotc/transform/PatternMatcher.scala

@@ -1391,7 +1391,7 @@ class PatternMatcher extends MiniPhaseTransform with DenotTransformer {thisTrans
         val accessors =
           if (defn.isProductSubType(binder.info))
             productSelectors(binder.info)
-          else binder.info.caseAccessors
+          else binder.caseAccessors
         val res =
         if (accessors.isDefinedAt(i - 1)) ref(binder).select(accessors(i - 1).name)
         else codegen.tupleSel(binder)(i) // this won't type check for case classes, as they do not inherit ProductN
@@ -1480,7 +1480,7 @@ class PatternMatcher extends MiniPhaseTransform with DenotTransformer {thisTrans
         * when `binderKnownNonNull` is `true`, `ProductExtractorTreeMaker` does not do a (redundant) null check on binder
         */
       def treeMaker(binder: Symbol, binderKnownNonNull: Boolean, pos: Position, binderTypeTested: Type): TreeMaker = {
-        val paramAccessors = binder.info.caseAccessors
+        val paramAccessors = binder.caseAccessors
         // binders corresponding to mutable fields should be stored (SI-5158, SI-6070)
         // make an exception for classes under the scala package as they should be well-behaved,
         // to optimize matching on List

src/dotty/tools/dotc/transform/TypeUtils.scala

@@ -26,6 +26,4 @@ class TypeUtils(val self: Type) extends AnyVal {
 
   def isPrimitiveValueType(implicit ctx: Context): Boolean =
     self.classSymbol.isPrimitiveValueClass
-
-  def caseAccessors(implicit ctx:Context) = self.decls.filter(x => x.is(Flags.CaseAccessor) && x.is(Flags.Method)).toList
-}
+}