[GR-2798] Add more truffle boundaries.

...cle/truffle/r/engine/interop/ffi/nfi/TruffleNFI_Base.java

...acle/truffle/r/engine/interop/ffi/nfi/TruffleNFI_DLL.java

...le/truffle/r/engine/interop/ffi/nfi/TruffleNFI_Utils.java

.../src/com/oracle/truffle/r/library/fastrGrid/LNewPage.java

...y/src/com/oracle/truffle/r/library/fastrGrid/LPretty.java

.../oracle/truffle/r/library/fastrGrid/device/SVGDevice.java

...y/src/com/oracle/truffle/r/library/stats/deriv/Deriv.java

...fle/r/nodes/builtin/base/infix/ProfiledSpecialsUtils.java

...uffle/r/nodes/access/variables/LocalReadVariableNode.java

...es/src/com/oracle/truffle/r/nodes/unary/ToStringNode.java

...me.ffi/src/com/oracle/truffle/r/runtime/ffi/LibPaths.java

....r.runtime/src/com/oracle/truffle/r/runtime/RDeparse.java

....r.runtime/src/com/oracle/truffle/r/runtime/REnvVars.java

...le.r.runtime/src/com/oracle/truffle/r/runtime/RError.java

....r.runtime/src/com/oracle/truffle/r/runtime/RProfile.java

...om/oracle/truffle/r/runtime/conn/DelegateRConnection.java

...rc/com/oracle/truffle/r/runtime/conn/FileConnections.java

...rc/com/oracle/truffle/r/runtime/nmath/GammaFunctions.java

...e/src/com/oracle/truffle/r/runtime/nmath/distr/Pnorm.java

...e/src/com/oracle/truffle/r/runtime/nmath/distr/SNorm.java