hg: jdk/sandbox: 8183548: Comma-expressions shouldn't use any temporary variable

[chris.hegarty at oracle.com]

Changeset: 5b033f23aced
Author:    bsrbnd
Date:      2018-09-15 22:16 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/5b033f23aced

8183548: Comma-expressions shouldn't use any temporary variable
Summary: Uses enhanced let-expressions allowing multiple statements
Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Lower.java
! test/langtools/tools/javac/desugar/BoxingAndSuper.java