hg: amber/amber: fixing several failing regression tests

[vicente.romero at oracle.com]

Changeset: c071cbedc651
Author:    vromero
Date:      2018-05-02 18:46 -0700
URL:       http://hg.openjdk.java.net/amber/amber/rev/c071cbedc651

fixing several failing regression tests

! src/java.base/share/classes/java/lang/Enum.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/util/Constables.java
! test/langtools/tools/javac/annotations/typeAnnotations/referenceinfos/Driver.java
! test/langtools/tools/javac/generics/inference/8176534/TestUncheckedCalls.java
! test/langtools/tools/javac/lambda/lambdaNaming/TestSerializedLambdaNameStability.java
! test/langtools/tools/javac/lvti/harness/NonDenotableTest.java