Don't force symbol info in TreeChecker.transformSym

Author: TheElectronWill

compiler/src/dotty/tools/dotc/transform/TreeChecker.scala

@@ -69,7 +69,7 @@ class TreeChecker extends Phase with SymTransformer {
   def transformSym(symd: SymDenotation)(using Context): SymDenotation = {
     val sym = symd.symbol
 
-    if (sym.isClass && !sym.isAbsent()) {
+    if (sym.isClass && !sym.isAbsent(canForce = false)) {
       val validSuperclass = sym.isPrimitiveValueClass || defn.syntheticCoreClasses.contains(sym) ||
         (sym eq defn.ObjectClass) || sym.isOneOf(NoSuperClassFlags) || (sym.asClass.superClass.exists) ||
         sym.isRefinementClass