public static void collectMethodConflicts(MultiMap<PsiElement, @DialogMessage String> conflicts, PsiMethod method, PsiParameter parameter) {
    PsiClass containingClass = method.getContainingClass();
    if (containingClass != null) {
      int parameterIndex = method.getParameterList().getParameterIndex(parameter);
      PsiMethod methodCopy = (PsiMethod)method.copy();
      methodCopy.getParameterList().getParameters()[parameterIndex].delete();
      ConflictsUtil.checkMethodConflicts(containingClass, method, methodCopy, conflicts);
    }
  }
public static void collectMethodConflicts(MultiMap<PsiElement, @DialogMessage String> conflicts, PsiMethod method, PsiParameter parameter)