hg: kulla/dev/langtools: Implement var without initializer so that it is redefine compatible with var with initializer. Fix compiler warnings.

[robert.field at oracle.com]

Changeset: 7e25bf3c2a6f
Author:    rfield
Date:      2014-12-29 21:18 -0800
URL:       http://hg.openjdk.java.net/kulla/dev/langtools/rev/7e25bf3c2a6f

Implement var without initializer so that it is redefine compatible with var with initializer.  Fix compiler warnings.

! repl/TODO
! repl/samples/replace.repl
! repl/scripts/compile.sh
! repl/src/impl/EvaluationStateImpl.java
! repl/src/impl/TaskFactory.java
! repl/src/impl/WrapFactory.java