enable more tests

...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

...racle/truffle/r/test/library/base/TestSimpleBuiltins.java

...om/oracle/truffle/r/test/library/base/TestSimpleLoop.java

...oracle/truffle/r/test/library/base/TestSimpleVectors.java

...acle/truffle/r/test/testrgen/TestrGenBuiltinEncoding.java

...e/truffle/r/test/testrgen/TestrGenBuiltinand_octmode.java

...oracle/truffle/r/test/testrgen/TestrGenBuiltinascall.java

...ffle/r/test/testrgen/TestrGenBuiltinasdoubledifftime.java

...le/truffle/r/test/testrgen/TestrGenBuiltinbitwiseAnd.java

...le/truffle/r/test/testrgen/TestrGenBuiltinbitwiseNot.java

...cle/truffle/r/test/testrgen/TestrGenBuiltinbitwiseOr.java

...truffle/r/test/testrgen/TestrGenBuiltinbitwiseShiftR.java

...le/truffle/r/test/testrgen/TestrGenBuiltinbitwiseXor.java

...nBuiltinextract_parentasis_extract_parentasis_factor.java

...st/testrgen/TestrGenBuiltinextract_parentasis_factor.java

...ruffle/r/test/testrgen/TestrGenBuiltinformatdifftime.java

.../truffle/r/test/testrgen/TestrGenBuiltinmeandifftime.java

...cle/truffle/r/test/testrgen/TestrGenBuiltinoperators.java