hg: jdk/jdk: 8236034: Use optimized Ques node for curly {0, 1} quantifier

[ivan.gerasimov at oracle.com]

Changeset: 6b794294d0e8
Author:    igerasim
Date:      2020-01-21 17:52 -0800
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/6b794294d0e8

8236034: Use optimized Ques node for curly {0,1} quantifier
Reviewed-by: rriggs

! src/java.base/share/classes/java/util/regex/Pattern.java
! test/jdk/java/util/regex/RegExTest.java
! test/jdk/java/util/regex/TestCases.txt