enabling polyglot SDK tests

com.oracle.truffle.r.engine/src/com/oracle/truffle/r/engine/interop/RAbstractVectorAccessFactory.java

@@ -90,6 +90,11 @@ public final class RAbstractVectorAccessFactory implements Factory26 {
             return extract.apply(frame, receiver, new Object[]{label + 1}, RLogical.TRUE, RLogical.TRUE);
         }
 
+        @Specialization
+        protected Object readIndexed(VirtualFrame frame, Object receiver, long label) {
+            return extract.apply(frame, receiver, new Object[]{label + 1}, RLogical.TRUE, RLogical.TRUE);
+        }
+
         @Specialization
         protected Object readProperty(VirtualFrame frame, Object receiver, String label) {
             return extract.applyAccessField(frame, receiver, label);

com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/access/vector/PositionCastNode.java

@@ -74,6 +74,11 @@ abstract class PositionCastNode extends RBaseNode {
         return RInteger.valueOf(position);
     }
 
+    @Specialization
+    protected RAbstractVector doLong(long position, @Cached("create()") NACheck check) {
+        return doDouble(position, check);
+    }
+
     @Specialization
     protected RAbstractVector doString(String position) {
         return RString.valueOf(position);