* useful to call from vanilla JavaScript because it returns an instance of Class, which can't be
   * converted to a standard JavaScript type. (Contrast to something like String or boolean.) Since
   * we're not calling it from JavaScript, we suppress the warning.
   */
  @JsMethod
  @SuppressWarnings("unusable-by-js")

 *       String}.
 * </ul>
 *
 * This is the same behavior as type-variable usages have to Kotlin and to the Checker Framework.
 * Contrast the method above to:
 *
 * <ul>
 *   <li>methods whose return type is a type variable but which can never return {@code null},
 *       typically because the type forbids nullable type arguments: For example, {@code

 *       String}.
 * </ul>
 *
 * This is the same behavior as type-variable usages have to Kotlin and to the Checker Framework.
 * Contrast the method above to:
 *
 * <ul>
 *   <li>methods whose return type is a type variable but which can never return {@code null},
 *       typically because the type forbids nullable type arguments: For example, {@code

 *       String}.
 * </ul>
 *
 * This is the same behavior as type-variable usages have to Kotlin and to the Checker Framework.
 * Contrast the method above to:
 *
 * <ul>
 *   <li>methods whose return type is a type variable but which can never return {@code null},
 *       typically because the type forbids nullable type arguments: For example, {@code

import org.jetbrains.kotlin.name.ClassId
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.types.Variance
import org.jetbrains.kotlin.utils.exceptions.errorWithAttachment
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.contract

/**
 * Maps FirElement to KtSymbol & ConeType to KtType, thread safe
 */
internal class KtSymbolByFirBuilder(
    private val project: Project,

   *
   * @throws NumberFormatException if the string does not contain a valid unsigned {@code int} value
   * @throws NullPointerException if {@code s} is null (in contrast to {@link
   *     Integer#parseInt(String)})
   */
  @CanIgnoreReturnValue
  public static int parseUnsignedInt(String s) {
    return parseUnsignedInt(s, 10);
  }

  /**

   * values. Changes to the returned map will update this table. The returned map does not support
   * {@code put()} or {@code putAll()}, or {@code setValue()} on its entries.
   *
   * <p>In contrast, the maps returned by {@code rowMap().get()} have the same behavior as those
   * returned by {@link #row}. Those maps may support {@code setValue()}, {@code put()}, and {@code
   * putAll()}.
   *

 *       String}.
 * </ul>
 *
 * This is the same behavior as type-variable usages have to Kotlin and to the Checker Framework.
 * Contrast the method above to:
 *
 * <ul>
 *   <li>methods whose return type is a type variable but which can never return {@code null},
 *       typically because the type forbids nullable type arguments: For example, {@code

 *       String}.
 * </ul>
 *
 * This is the same behavior as type-variable usages have to Kotlin and to the Checker Framework.
 * Contrast the method above to:
 *
 * <ul>
 *   <li>methods whose return type is a type variable but which can never return {@code null},
 *       typically because the type forbids nullable type arguments: For example, {@code

 *       String}.
 * </ul>
 *
 * This is the same behavior as type-variable usages have to Kotlin and to the Checker Framework.
 * Contrast the method above to:
 *
 * <ul>
 *   <li>methods whose return type is a type variable but which can never return {@code null},
 *       typically because the type forbids nullable type arguments: For example, {@code