hg: amber/amber: testing sealed at runtime

[vicente.romero at oracle.com]

Changeset: 04b27adc98b3
Author:    vromero
Date:      2018-12-12 16:38 -0500
URL:       http://hg.openjdk.java.net/amber/amber/rev/04b27adc98b3

testing sealed at runtime

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
+ test/langtools/tools/javac/sealed/CheckingAttributeAtRuntimeTest.java
+ test/langtools/tools/javac/sealed/sealedExtensionNeg/SealedExtensionNegTest.java