Merge pull request #690 in G/fastr from...

Merge pull request #690 in G/fastr from ~FLORIAN.ANGERER_ORACLE.COM/fastr:bugfix/virtualframe to master

* commit 'e90d9ce0':
  Fixed compilation error due to removed import (see PR-687)

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

@@ -147,7 +147,7 @@ public abstract class Format extends RBuiltinNode {
     }
 
     @Specialization
-    protected RStringVector format(VirtualFrame frame, REnvironment value, boolean trim, int digits, int nsmall, int width, int justify, boolean naEncode, int scientific,
+    protected RStringVector format(REnvironment value, boolean trim, int digits, int nsmall, int width, int justify, boolean naEncode, int scientific,
                     String decimalMark) {
         return RDataFactory.createStringVector(value.getPrintName());
     }