Merge

...fle.r.engine/src/com/oracle/truffle/r/engine/REngine.java

...y/src/com/oracle/truffle/r/library/fastr/InteropEval.java

com.oracle.truffle.r.native/fficall/src/common/arithmetic.c

com.oracle.truffle.r.native/library/fastr/src/NAMESPACE

com.oracle.truffle.r.native/library/fastr/src/R/fastr.R

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

...om/oracle/truffle/r/nodes/builtin/base/foreign/FastR.java

...nodes/src/com/oracle/truffle/r/nodes/RTruffleVisitor.java

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

...time/src/com/oracle/truffle/r/runtime/context/Engine.java

...e/src/com/oracle/truffle/r/runtime/data/RDataFactory.java

...me/src/com/oracle/truffle/r/runtime/env/REnvironment.java

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

.../oracle/truffle/r/test/library/fastr/TestInteropEval.java