Merge pull request #392 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/rec-specials to master

* commit 'b410472f':
  Fix BinaryArithmeticSpecial for NaN vs NA values
  Arguments of specials can be other specials

Merge pull request #396 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:fix/fortran-truffle-boundary to master

* commit 'a97d87a6':
  Add @TruffleBoundary over Fortran.lookup method

* commit 'e490bbe3':
  enable passing tests
  use new DSL layout in .Internal and RCallNode
  node costs in ShareObjectNode, some "final" attributes on classes
  make VectorPrinter more resilient to "null" values
  fix wrong dimensions in Rf_allocMatrix
  ensure that builtin-RFunctions are only created once
  intern names during attribute updates
  represent empty capture names as ""
  support creating function expressions with "call"
  implement SETCADR, fixes to other SET functions
  update capabilities bultins
  print internal error messages if appropriate
  call "print" functions for list elements and attributes
  correct treatment for the names of dimnames in vector extract
  bugfixes in various bultins
  "length" has internal generic dispatch
  do not allow bultins to return "null"

The bailout is then recursive.

Merge pull request #394 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:specialcall_profiles to master

* commit '36f542d4':
  ValueProfile in RCallSpecialNode

Merge pull request #391 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/specials-small-fixes to master

* commit '01124bcd':
  UpdateFieldSpecial checks if LSH==RHS to avoid incrementing reference count
  Always transfer to interpreter when throwing FullCallNeededException
  Replace more RCallNode.create with RCallSpecialNode.create

* commit '60d212fc':
  Added a comment in ParserGeneration related to recent parser change.
  Regenerated tests.
  Parsing of unicode symbols does not require all digits to be present.
  Define FASTR also when compiling C++ code.
  Make definitions of some native functions available as expected by packages that expect USE_RINTERNALS to be set.
  Support for creating shallow duplicates on the native side.

Merge pull request #387 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/more-specials2 to master

* commit '6411d09a':
  Special for UpdateField + fixes

Merge pull request #390 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:fix_assign_regression to master

* commit '7f08ae64':
  add the number-to-string cache optimization to ToStringNode
  remove optimization from "assign" that causes perf regression

Make definitions of some native functions available as expected by packages that expect USE_RINTERNALS to be set.