Tuple projection throws java.lang.ArrayIndexOutOfBoundsException when the field index equals the tuple length

[sungshik]

Describe the bug

Tuple projection throws java.lang.ArrayIndexOutOfBoundsException when the field index equals the tuple length.

To Reproduce

rascal><"foo", "bar"><0>;
str: "foo"

rascal><"foo", "bar"><1>;
str: "bar"

rascal><"foo", "bar"><2>;
java.lang.ArrayIndexOutOfBoundsException: Index 2 out of bounds for length 2
(internal error)
        at $shell$(|main://$shell$|)

rascal><"foo", "bar"><3>;
|prompt:///|(8,5,<1,8>,<1,13>): IndexOutOfBounds(3)
        at $shell$(|prompt:///|(0,18,<1,0>,<1,18>)

rascal><"foo", "bar"><1000>;
|prompt:///|(8,5,<1,8>,<1,13>): IndexOutOfBounds(1000)
        at $shell$(|prompt:///|(0,21,<1,0>,<1,21>)

Expected behavior

rascal><"foo", "bar"><2>;
|prompt:///|(8,5,<1,8>,<1,13>): IndexOutOfBounds(2)
        at $shell$(|prompt:///|(0,18,<1,0>,<1,18>)

Stack traces

java.lang.ArrayIndexOutOfBoundsException: Index 2 out of bounds for length 2
        at io.usethesource.vallang.type.TupleType.getFieldType(TupleType.java:131)
        at io.usethesource.vallang.type.TupleType.select(TupleType.java:450)
        at org.rascalmpl.interpreter.result.TupleResult.fieldSelect(TupleResult.java:52)
        at org.rascalmpl.interpreter.result.TupleResult.fieldSelect(TupleResult.java:114)
        at org.rascalmpl.semantics.dynamic.Expression$FieldProject.interpret(Expression.java:907)
        at org.rascalmpl.semantics.dynamic.Statement$Expression.interpret(Statement.java:365)
        at org.rascalmpl.interpreter.Evaluator.eval(Evaluator.java:899)
        at org.rascalmpl.semantics.dynamic.Command$Statement.interpret(Command.java:125)
        at org.rascalmpl.interpreter.Evaluator.eval(Evaluator.java:1135)
        at org.rascalmpl.interpreter.Evaluator.eval(Evaluator.java:984)
        at org.rascalmpl.interpreter.Evaluator.eval(Evaluator.java:935)
        at org.rascalmpl.repl.RascalInterpreterREPL.evalStatement(RascalInterpreterREPL.java:134)
        at org.rascalmpl.vscode.lsp.terminal.LSPTerminalREPL$1.evalStatement(LSPTerminalREPL.java:137)
        at org.rascalmpl.repl.BaseRascalREPL.handleInput(BaseRascalREPL.java:107)
        at org.rascalmpl.vscode.lsp.terminal.LSPTerminalREPL$1.handleInput(LSPTerminalREPL.java:233)
        at org.rascalmpl.repl.BaseREPL.handleInput(BaseREPL.java:179)
        at org.rascalmpl.repl.BaseREPL.run(BaseREPL.java:346)
        at org.rascalmpl.vscode.lsp.terminal.LSPTerminalREPL.main(LSPTerminalREPL.java:320)