Merge pull request #374 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:supplier_functions to master

* commit 'bf607626':
  add TruffleBoundaries in ForeignFunctions
  remove unnecessary CapabilitiesFunctions wrapper class

* commit '6d61fd8c':
  simplification in UpdateField
  enable passing tests
  remove scalar value casts
  clean up legacy cast API
  throw better error messages for invalid LHS in replacement
  remaining builtin cast pipelines
  add missing transferToInterpreter, remove Fallback in GetNonSharedNode
  various imports and other cleanups

* commit '58fa7e0b':
  Put String.format behind TruffleBoundary

* commit '0200d8d3':
  more complete handling of rpath'ed libraries
  jniboot: capture dlerror as a jstring immediately
  make all library references via @rpath/loader_path for relocatable release (on Mac)
  various minor changes for clean gate build
  replace JNR_PCRE with JNI_PCRE

* commit 'c52b95f8':
  separate native distributions by architecture

* commit '0dda29ae':
  avoid capturing URLs that reference src locations for internal R code

Makefile typo

* commit '8f4a5799': (22 commits)
  Unit tests for cast pipelines builder + small fixes to have consistent semantics
  Updated the javadoc of the arg method in CastBuilder
  test output file re-generated
  trailing spaces removed
  Chimney-sweeping adapted to processing all builtins in batch
  rbdiag supports two levels of matching the outputs produced by FastR and GnuR
  rbdiag can use RMissing and RNull values as the only samples
  CastPipeline: bypassing strings + few fixes
  CastBuilder documentation
  Implemented optimizations using the new intermediate representation.
  CastBuilder refactoring: inner classes moved to separate package
  CastBuilder: removed old API and replaced with equivalent expressed in new API
  Fix compilation errors
  Cast pipelines diagnostics re-implemented using CP-IR
  passing tests after CP-IR refactoring
  A major CP refactoring using an intermediate representation (CP-IR)
  Intermediate representation of the cast pipeline
  Fix: Bool -> Boolean
  Initial structure of intermediate representation of cast pipeline and its conversion to CastNodes.
  BypassNode can bypass some atomic types
  ...

Merge pull request #341 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:feature/expression_as_vector to master

* commit 'dfdf953b':
  make RVector generic with array type
  RExpression extends RVector (instead of wrapping an RList)

Merge pull request #367 in G/fastr from ~ADAM.WELC_ORACLE.COM/fastr:feature/various_updates to master

* commit 'd2c4473c':
  Support for updating language objects on the native side.
  Handling both types of call nodes when creating a call.

Merge pull request #366 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:feature/update_truffle to master

* commit 'f9a82d97':
  update Truffle version

* commit 'c15d2151':
  checkstyle fix
  generalize/localize addition of PolyglotEngine symbols in unit tests
  purge non-maven URLs in suite.py
  update JNR versions