Refactor to improve iterations

- Use function abstractions (such as map, reduce, filter etc.) over
  for-of loops to gain benefits of having less side effects and easier
  readability.
- Enable `downLevelIterations` for writing modern code with lazy evaluation.
- Refactor for of loops to named abstractions to clearly express their
  intentions without needing to analyse the loop itself.
- Add missing cases for changes that had no tests.

src/application/Parser/Script/Compiler/Expressions/Pipes/PipelineCompiler.ts

@@ -8,11 +8,9 @@ export class PipelineCompiler implements IPipelineCompiler {
     ensureValidArguments(value, pipeline);
     const pipeNames = extractPipeNames(pipeline);
     const pipes = pipeNames.map((pipeName) => this.factory.get(pipeName));
-    let valueInCompilation = value;
-    for (const pipe of pipes) {
-      valueInCompilation = pipe.apply(valueInCompilation);
-    }
-    return valueInCompilation;
+    return pipes.reduce((previousValue, pipe) => {
+      return pipe.apply(previousValue);
+    }, value);
   }
 }