[GR-2798] New cast API map(toBoolean(naValue)).

...oracle/truffle/r/library/methods/MethodsListDispatch.java

...rary/src/com/oracle/truffle/r/library/tools/DirChmod.java

...library/src/com/oracle/truffle/r/library/utils/Rprof.java

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

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

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

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

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

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

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

...ltin/src/com/oracle/truffle/r/nodes/builtin/base/Sum.java

...s/src/com/oracle/truffle/r/nodes/builtin/CastBuilder.java

.../src/com/oracle/truffle/r/nodes/builtin/casts/Mapper.java

...cle/truffle/r/nodes/builtin/casts/PipelineToCastNode.java

...le/truffle/r/nodes/builtin/casts/ValueForwardingNode.java

...odes/builtin/casts/analysis/ForwardingAnalysisResult.java

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

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

...racle/truffle/r/test/builtins/TestBuiltin_isunsorted.java

...c/com/oracle/truffle/r/test/builtins/TestBuiltin_max.java