[GR-3229] Adopt changes in NFI.

...racle/truffle/r/ffi/impl/interop/tools/RConnGetCCall.java

...cle/truffle/r/ffi/impl/interop/tools/RConnGetCCallMR.java

...om/oracle/truffle/r/ffi/impl/llvm/TruffleLLVM_Lapack.java

...com/oracle/truffle/r/ffi/impl/nfi/TruffleNFI_CAccess.java

...rc/com/oracle/truffle/r/ffi/impl/nfi/TruffleNFI_Call.java

...com/oracle/truffle/r/ffi/impl/nfi/TruffleNFI_PkgInit.java

...oracle/truffle/r/ffi/impl/nfi/TruffleNFI_RFFIFactory.java

...c/com/oracle/truffle/r/ffi/impl/nfi/TruffleNFI_Tools.java

.../src/com/oracle/truffle/r/ffi/processor/FFIProcessor.java

...oracle.truffle.r.native/fficall/src/common/rffi_upcalls.h

...truffle.r.native/fficall/src/truffle_nfi/Rdynload_fastr.c

...cle.truffle.r.native/fficall/src/truffle_nfi/Rinternals.c

...acle.truffle.r.native/fficall/src/truffle_nfi/rffiutils.c

...acle.truffle.r.native/fficall/src/truffle_nfi/rffiutils.h

...acle.truffle.r.native/fficall/src/truffle_nfi/variables.c

com.oracle.truffle.r.native/library/tools/Makefile

...uffle.r.native/library/tools/src/truffle_nfi/gramRd_nfi.c

...me/src/com/oracle/truffle/r/runtime/context/RContext.java

...e.r.runtime/src/com/oracle/truffle/r/runtime/ffi/DLL.java

...runtime/src/com/oracle/truffle/r/runtime/ffi/DLLRFFI.java