[GR-6328] Minor fixes for graphics.

....launcher/src/com/oracle/truffle/r/launcher/RCommand.java

...oracle/truffle/r/library/fastrGrid/grDevices/DevCurr.java

...le/r/library/fastrGrid/graphics/RGridGraphicsAdapter.java

...iltin/src/com/oracle/truffle/r/nodes/builtin/base/Rm.java

...com/oracle/truffle/r/runtime/JumpToTopLevelException.java

...c/com/oracle/truffle/r/runtime/data/NativeDataAccess.java

...untime/src/com/oracle/truffle/r/runtime/data/RVector.java

...com/oracle/truffle/r/runtime/data/nodes/GetDataStore.java

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

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