hg: amber/amber: Add bootstraps for switch, including pattern switch

[brian.goetz at oracle.com]

Changeset: b1d6664ce434
Author:    briangoetz
Date:      2018-10-29 17:34 -0400
URL:       http://hg.openjdk.java.net/amber/amber/rev/b1d6664ce434

Add bootstraps for switch, including pattern switch

! src/java.base/share/classes/java/lang/compiler/Extractor.java
+ src/java.base/share/classes/java/lang/compiler/SwitchBootstraps.java
! test/jdk/java/lang/compiler/ExtractorTest.java
! test/jdk/java/lang/compiler/RecordTest.java
+ test/jdk/java/lang/compiler/SwitchBootstrapsTest.java