Bug 570738: [R-Source] Add support for pipe operator

  - Add pipe operator |> to RTerminal and support to RLexer
  - Add R AST node type for pipes and support to RParser
  - Add method for pipe nodes to RAstVisitor
  - Add support for pipe nodes to SyntaxProblemReporter
  - Add support for special argument matching after pipe operator

Change-Id: I019714568d6652696f5eb825cb0a2eb29668e0b7
27 files changed
tree: 5c3714fdf5bde659793c6430cadc3f4874a0163c
  1. .settings/
  2. r/
  3. redocs/
  4. rhelp/
  5. rtm/
  6. .project
  7. LICENSE
  8. NOTICE.md
  9. pom.xml