Merge

...odes/src/com/oracle/truffle/r/nodes/builtin/base/Cor.java

...odes/src/com/oracle/truffle/r/nodes/builtin/base/Cov.java

...s/src/com/oracle/truffle/r/nodes/builtin/base/Covcor.java

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

...om/oracle/truffle/r/nodes/builtin/debug/DebugPackage.java

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

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

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

...t/src/com/oracle/truffle/r/test/failing/FailingTests.java

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

mx.fastr/imports