Update copyrights

...gen/src/com/oracle/truffle/r/ffi/codegen/CodeGenBase.java

...src/com/oracle/truffle/r/ffi/codegen/FFITestsCodeGen.java

.../oracle/truffle/r/ffi/codegen/FFIUpCallsIndexCodeGen.java

...acle.truffle.r.native/fficall/src/common/qsort-body.templ

...e.truffle.r.native/fficall/src/common/rffi_upcallsindex.h

com.oracle.truffle.r.native/llvm_tools/llvm-helper

...n/src/com/oracle/truffle/r/nodes/builtin/base/R/do.call.R

...m/oracle/truffle/r/nodes/builtin/base/Rd/eval.polyglot.Rd

.../src/com/oracle/truffle/r/nodes/builtin/base/Rd/export.Rd

.../src/com/oracle/truffle/r/nodes/builtin/base/Rd/import.Rd

...acle/truffle/r/nodes/builtin/base/Rd/is.polyglot.value.Rd

...le/truffle/r/nodes/builtin/base/Rd/java.addToClasspath.Rd

...c/com/oracle/truffle/r/nodes/builtin/base/Rd/java.type.Rd

com.oracle.truffle.r.release/src/R_legacy

com.oracle.truffle.r.release/src/Rscript_legacy

....truffle.r.test.native/packages/testrffi/testrffi/R/api.R

...fle.r.test.native/packages/testrffi/testrffi/R/testrffi.R

...native/packages/testrffi/testrffi/man/testrffi-package.Rd

...e.r.test.native/packages/testrffi/testrffi/src/init_api.h

...test.native/packages/testrffi/testrffi/src/rffiwrappers.c