8265174: Update Class.getDeclaredMethods to discuss synthetic and bridge methods

Reviewed-by: jfranck

src/java.base/share/classes/java/lang/reflect/Parameter.java

@@ -257,10 +257,13 @@ public final class Parameter implements AnnotatedElement {
      * nor explicitly declared in source code; returns {@code false}
      * otherwise.
      *
-     * @jls 13.1 The Form of a Binary
      * @return true if and only if this parameter is a synthetic
      * construct as defined by
      * <cite>The Java Language Specification</cite>.
+     * @jls 13.1 The Form of a Binary
+     * @see <a
+     * href="{@docRoot}/java.base/java/lang/reflect/package-summary.html#LanguageJvmModel">Java
+     * programming language and JVM modeling in core reflection</a>
      */
     public boolean isSynthetic() {
         return Modifier.isSynthetic(getModifiers());