enable more passing 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

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

...om/oracle/truffle/r/test/simple/TestSimpleComparison.java

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

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

...fle/r/test/testrgen/TestrGenBuiltinallequalcharacter.java

...uffle/r/test/testrgen/TestrGenBuiltinallequalnumeric.java

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

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

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

.../truffle/r/test/testrgen/TestrGenBuiltinasexpression.java

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

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

...m/oracle/truffle/r/test/testrgen/TestrGenBuiltinattr.java

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

.../com/oracle/truffle/r/test/testrgen/TestrGenBuiltinc.java

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

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