[GR-5724] Cleanun interop value conversion.

...in/src/com/oracle/truffle/r/nodes/builtin/base/Names.java

...ruffle/r/nodes/builtin/base/printer/ValuePrinterNode.java

...e/truffle/r/nodes/builtin/base/printer/ValuePrinters.java

...acle/truffle/r/nodes/access/vector/ExtractVectorNode.java

...es/src/com/oracle/truffle/r/nodes/function/RCallNode.java

...e/src/com/oracle/truffle/r/runtime/interop/Foreign2R.java

.../com/oracle/truffle/r/runtime/interop/ForeignArray2R.java

...est/src/com/oracle/truffle/r/test/ExpectedTestOutput.test

.../oracle/truffle/r/test/library/fastr/TestJavaInterop.java