[GR-4099] Fixes towards running ggplot2.

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

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

.../src/com/oracle/truffle/r/runtime/ArgumentsSignature.java

....runtime/src/com/oracle/truffle/r/runtime/RSerialize.java

...om/oracle/truffle/r/runtime/data/RArgsValuesAndNames.java

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

.../com/oracle/truffle/r/test/builtins/TestBuiltin_mget.java

...oracle/truffle/r/test/builtins/TestBuiltin_serialize.java

...rc/com/oracle/truffle/r/test/functions/TestFunctions.java