hg: jdk/sandbox: 8222251: preflow visitor is not visiting lambda expressions

[chris.hegarty at oracle.com]

Changeset: 7f782ee493f7
Author:    vromero
Date:      2019-05-09 10:04 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/7f782ee493f7

8222251: preflow visitor is not visiting lambda expressions
Reviewed-by: mcimadamore

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
+ test/langtools/tools/javac/T8222251/PreflowNotVisitingLambdaExpTest.java