hg: kulla/dev/langtools: Provide information on the declaration of the Snippet Declared/Redefined/Redeclared through the API. Add redefinition and redeclaration test.

[robert.field at oracle.com]

Changeset: 4a91959ca6b6
Author:    rfield
Date:      2015-01-16 17:50 -0800
URL:       http://hg.openjdk.java.net/kulla/dev/langtools/rev/4a91959ca6b6

Provide information on the declaration of the Snippet Declared/Redefined/Redeclared through the API.  Add redefinition and redeclaration test.

! repl/TODO
! repl/src/api/EvaluationState.java
! repl/src/impl/EvaluationStateImpl.java
! repl/src/impl/SnippetImpl.java
! repl/src/tool/Repl.java
+ repl/testng/test/EmptyTest.java
! repl/testng/test/KullaTesting.java
! repl/testng/test/NullTest.java
! repl/testng/test/ReplaceTest.java < repl/testng/test/EmptyTest.java
! repl/testng/test/SanityTest.java
! repl/testng/test/ShutdownTest.java
! repl/testng/test/SimpleRegressionTest.java
! repl/testng/test/SnippetTest.java