Merged allr/fastr into default

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

com.oracle.truffle.r.native/lib/darwin/libRDerived.dylib

...acle/truffle/r/nodes/builtin/base/ClassHierarchyNode.java

...des/src/com/oracle/truffle/r/nodes/builtin/base/Diag.java

...acle/truffle/r/nodes/builtin/base/DispatchedCallNode.java

...om/oracle/truffle/r/nodes/builtin/base/EvalFunctions.java

...des/src/com/oracle/truffle/r/nodes/builtin/base/R/solve.R

...rc/com/oracle/truffle/r/nodes/builtin/base/UseMethod.java

...racle/truffle/r/nodes/builtin/debug/DebugDumpBuiltin.java

...des/src/com/oracle/truffle/r/nodes/builtin/stats/R/init.R

.../src/com/oracle/truffle/r/nodes/function/PromiseNode.java

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

...fle.r.runtime/src/com/oracle/truffle/r/runtime/Utils.java

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

...ntime/src/com/oracle/truffle/r/runtime/data/RPromise.java

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

...le.r.test/src/com/oracle/truffle/r/test/all/AllTests.java

.../com/oracle/truffle/r/test/simple/TestSimpleBuiltins.java

mx.fastr/imports

mx.fastr/mx_fastr.py