work on quote, more RLanguage refactoring

...fle.r.engine/src/com/oracle/truffle/r/engine/REngine.java

...rc/com/oracle/truffle/r/engine/RRuntimeASTAccessImpl.java

...om/oracle/truffle/r/library/methods/SubstituteDirect.java

...tin/src/com/oracle/truffle/r/nodes/builtin/base/Bind.java

...tin/src/com/oracle/truffle/r/nodes/builtin/base/Body.java

...n/src/com/oracle/truffle/r/nodes/builtin/base/DoCall.java

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

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

...m/oracle/truffle/r/nodes/builtin/base/FrameFunctions.java

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

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

...fle.r.nodes/src/com/oracle/truffle/r/nodes/RASTUtils.java

...src/com/oracle/truffle/r/nodes/builtin/RList2EnvNode.java

...le.r.runtime/src/com/oracle/truffle/r/runtime/RError.java

...e/src/com/oracle/truffle/r/runtime/RRuntimeASTAccess.java

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

...fle.r.runtime/src/com/oracle/truffle/r/runtime/Utils.java