- Add builtin query
- Add ReplacementDispatcher to visitors
- Remove obsolete parser modifications for queries

Merge pull request #510 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/all-rxxx to master

* commit '1931ad6c':
  Implement rmultinom
  Performance improvements
  Implement all remaining rxxx functions except for rmultinom

* commit 'dd6e957c':
  simplify CallRFFI.invokeCall signature and native info extraction in ForeignFunctions etc.
  forward dll info to CallRFFI/CRFFI

* commit 'd9ec63fd':
  Unnecessary profiles removed
  A couple of fix-ups in attribute related nodes

* commit '55510925':
  as.complex has internal generic dispatch
  Parser: hex float literals without decimal point (e.g. 0x0p0)

* commit 'e10337ce':
  pylint fix
  mx_fastr: add nativebuild command
  rffi: further cleanp
  ffi: route all upcalls through CallRFFIHelper

Merge pull request #505 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/parser-hex-floats to master

* commit 'c26280d0':
  Parser: support for hex float literals (e.g. 0xa.bP16)

Merge pull request #503 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/prob-distr3 to master

* commit 'ff858293':
  TestRandGenerationFunctions: Ignore.Whitespace is enough to match GnuR warnings output
  Fix typo in RPois + Wilcox catches OutOfMemoryError
  Regenerate expected tests output + few more rxxx tests
  RDeparse: 'correct' spacing around '/'
  Implement rwilcox
  Implement C_rnbinom_mu for rnbinom with parameter mu
  Implement C_rnchisq adding support for rchisq with 3 arguments
  Implement 'rweibull'
  Implement 'rlogis'
  Implement 'rf'
  Implement rgamma + unified tests for all rxxx functions
  RRNG: save some allocations when handling .Random.seed
  Simplify RandFunctionX_Y interfaces