hg: amber/amber: manual merge with branch jep-334

[vicente.romero at oracle.com]

Changeset: 8367c588a717
Author:    vromero
Date:      2018-05-31 05:53 -0700
URL:       http://hg.openjdk.java.net/amber/amber/rev/8367c588a717

manual merge with branch jep-334

! test/langtools/jdk/javadoc/doclet/testClassTree/TestClassTree.java
! test/langtools/jdk/jshell/TypeNameTest.java
! test/langtools/tools/javac/T8187978/FilterOutCandidatesForDiagnosticsTest.out
! test/langtools/tools/javac/generics/inference/EagerReturnTypeResolution/EagerReturnTypeResolutionTestb.out
! test/langtools/tools/javac/lvti/harness/NonDenotableTest.java
! test/langtools/tools/javac/varargs/6806876/T6806876.out