Merge branch 'master' into feature/r-3.3.2

.gitignore

com.oracle.truffle.r.native/fficall/src/include/Defn.h

com.oracle.truffle.r.native/fficall/src/jni/Rinternals.c

com.oracle.truffle.r.native/fficall/src/jni/rffiutils.c

...ruffle.r.native/fficall/src/variable_defs/variable_defs.h

com.oracle.truffle.r.native/gnur/Makefile.gnur

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

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

.../src/com/oracle/truffle/r/nodes/builtin/base/Sample2.java

...cle/truffle/r/nodes/builtin/base/infix/SpecialsUtils.java

.../oracle/truffle/r/nodes/builtin/base/infix/Subscript.java

...com/oracle/truffle/r/nodes/builtin/base/infix/Subset.java

...des/builtin/base/system/ProcessSystemFunctionFactory.java

...ruffle/r/nodes/access/vector/CachedExtractVectorNode.java

...ruffle/r/nodes/access/vector/CachedReplaceVectorNode.java

.../com/oracle/truffle/r/nodes/function/ArgumentMatcher.java

...m/oracle/truffle/r/nodes/function/ClassHierarchyNode.java

...cle/truffle/r/nodes/function/WrapDefaultArgumentNode.java

...cle/truffle/r/nodes/function/signature/VarArgsHelper.java

...nodes/src/com/oracle/truffle/r/nodes/unary/NonNANode.java