Fixing tests that unintentionally fail with Unexpected symbol error.

...m/oracle/truffle/r/nodes/builtin/base/R/package-info.java

.../src/com/oracle/truffle/r/nodes/builtin/base/Sprintf.java

...c/com/oracle/truffle/r/nodes/attributes/package-info.java

.../com/oracle/truffle/r/runtime/env/frame/package-info.java

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

...acle/truffle/r/test/builtins/TestBuiltin_ascharacter.java

.../oracle/truffle/r/test/builtins/TestBuiltin_asvector.java

...src/com/oracle/truffle/r/test/builtins/TestBuiltin_c.java

...racle/truffle/r/test/builtins/TestBuiltin_copyDFattr.java

...com/oracle/truffle/r/test/builtins/TestBuiltin_crc64.java

.../oracle/truffle/r/test/builtins/TestBuiltin_dimnames.java

.../com/oracle/truffle/r/test/builtins/TestBuiltin_gsub.java

...racle/truffle/r/test/builtins/TestBuiltin_isfunction.java

...oracle/truffle/r/test/builtins/TestBuiltin_isnumeric.java

...com/oracle/truffle/r/test/builtins/TestBuiltin_match.java

...om/oracle/truffle/r/test/builtins/TestBuiltin_maxcol.java

...le/truffle/r/test/builtins/TestBuiltin_seterrmessage.java

...m/oracle/truffle/r/test/builtins/TestBuiltin_shQuote.java

...le/truffle/r/test/builtins/TestBuiltin_shortRowNames.java

...om/oracle/truffle/r/test/builtins/TestBuiltin_signif.java