Add tasks for all the new languages

Task/Runtime-evaluation/Sparkling/runtime-evaluation-1.sparkling

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+let fn = exprtofn("13 + 37");
+fn() // -> 50

Task/Runtime-evaluation/Sparkling/runtime-evaluation-2.sparkling

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+let fn = exprtofn("#0 * #1");
+fn(3, 4) // -> 12

Task/Runtime-evaluation/Sparkling/runtime-evaluation-3.sparkling

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+let fn = compile("for (var i = 0; i < 10; i++) { print(i); }");
+fn(); // result: 0 1 2 3 4 5 6 7 8 9