git: openjdk/jdk17u: master: 8268885: duplicate checkcast when destination type is not first type of intersection type

[Yuri Nesterenko]

Changeset: d13334d5
Author:    Ekaterina Vergizova <evergizova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2021-10-07 12:48:20 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/d13334d5ee24d3891233d5dc685b623618eaebb5

8268885: duplicate checkcast when destination type is not first type of intersection type

Backport-of: dd1209e4ae3c8e42d121329639ec4bd359d0a456

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/TransTypes.java
! test/langtools/tools/javac/cast/intersection/DuplicatedCheckcastTest.java