[GR-5875] R package for comparing values to a reference run.

.../com/oracle/truffle/r/nodes/builtin/base/BasePackage.java

...tin/src/com/oracle/truffle/r/nodes/builtin/base/Dump.java

...m/oracle/truffle/r/nodes/function/GetCallerFrameNode.java

.../com/oracle/truffle/r/nodes/unary/ConvertBooleanNode.java

com.oracle.truffle.r.pkgs/refcmp/DESCRIPTION

com.oracle.truffle.r.pkgs/refcmp/NAMESPACE

com.oracle.truffle.r.pkgs/refcmp/R/refcmp.R

com.oracle.truffle.r.pkgs/refcmp/R/snapshot.R

com.oracle.truffle.r.pkgs/refcmp/man/refcmp.Rd

com.oracle.truffle.r.pkgs/refcmp/man/snapshot.Rd

com.oracle.truffle.r.pkgs/refcmp/man/snapshot.init.Rd

com.oracle.truffle.r.pkgs/refcmp/man/snapshot.named.Rd

com.oracle.truffle.r.pkgs/refcmp/man/snapshot.show.Rd

.../src/com/oracle/truffle/r/runtime/ArgumentsSignature.java

...om/oracle/truffle/r/runtime/conn/DelegateRConnection.java

...est/src/com/oracle/truffle/r/test/ExpectedTestOutput.test

.../com/oracle/truffle/r/test/builtins/TestBuiltin_dump.java

...le/truffle/r/test/library/base/TestSimpleIfEvaluator.java