hg: kulla/dev/langtools: Add Key for access to information about current declaration.

[robert.field at oracle.com]

Changeset: a5e7833dfe10
Author:    rfield
Date:      2015-03-02 22:11 -0800
URL:       http://hg.openjdk.java.net/kulla/dev/langtools/rev/a5e7833dfe10

Add Key for access to information about current declaration.

+ repl/src/api/Key.java
! repl/src/api/SnippetInfo.java
! repl/src/impl/EvalStateImpl.java
! repl/src/impl/SnippetImpl.java
! repl/src/impl/SnippetMaps.java
! repl/src/tool/Repl.java
! repl/testng/stress/DeclareStressTest.java
! repl/testng/test/ExceptionsTest.java
! repl/testng/test/KullaTesting.java