boolean isDefaultReturn(PsiStatement statement) {
    if (myReturnVariableDefaultValue != null && statement instanceof PsiReturnStatement returnStatement) {
      return EquivalenceChecker.getCanonicalPsiEquivalence()
               .expressionsAreEquivalent(myReturnVariableDefaultValue, returnStatement.getReturnValue()) &&
             !FinishMarker.mayNeedMarker(returnStatement, myBlock);
    }
    return false;
  }
boolean isDefaultReturn(PsiStatement statement)