Merge

...n/src/com/oracle/truffle/r/nodes/builtin/base/Assign.java

...om/oracle/truffle/r/nodes/builtin/base/EvalFunctions.java

...om/oracle/truffle/r/nodes/builtin/base/FileFunctions.java

...oracle/truffle/r/nodes/builtin/base/ForeignFunctions.java

...truffle/r/nodes/builtin/base/HiddenInternalFunctions.java

...racle/truffle/r/nodes/builtin/base/PrettyPrinterNode.java

...in/src/com/oracle/truffle/r/nodes/builtin/base/R/assign.R

...tin/src/com/oracle/truffle/r/nodes/builtin/base/Scan.java

.../src/com/oracle/truffle/r/nodes/builtin/base/Sprintf.java

...c/com/oracle/truffle/r/nodes/builtin/base/Substitute.java

...n/src/com/oracle/truffle/r/nodes/builtin/base/Switch.java

...com/oracle/truffle/r/nodes/builtin/base/UpdateLevels.java

...com/oracle/truffle/r/nodes/builtin/utils/CountFields.java

.../com/oracle/truffle/r/nodes/builtin/utils/WriteTable.java

...ruffle.r.test/src/com/oracle/truffle/r/test/TestBase.java

mx.fastr/mx_fastr.py