Bad command-line for debugDiagnosticSeverity does not crashes Prepack…

… anymore (#2545)

Summary:
This can be a possible fix for #2509

I have removed the `invariant` method call and added a value check as used for the _invariantMode_ option.

`node lib/prepack-cli.js --debugDiagnosticSeverity foo`

will now generate

`Unsupported debugDiagnosticSeverity: foo`
Pull Request resolved: #2545

Differential Revision: D9800485

Pulled By: hermanventer

fbshipit-source-id: edc24b4a812b4e32f9c48e05a0799bf4af431991

src/options.js

@@ -33,6 +33,7 @@ export const InvariantModeValues = [
   "nativeLoggingHook+2",
   "nativeLoggingHook+3",
 ];
+export const DiagnosticSeverityValues = ["FatalError", "RecoverableError", "Warning", "Information"];
 
 export type ReactOutputTypes = "create-element" | "jsx" | "bytecode";
 export const ReactOutputValues = ["create-element", "jsx", "bytecode"];

src/prepack-cli.js

@@ -19,6 +19,7 @@ import {
   ReactOutputValues,
   type InvariantModeTypes,
   InvariantModeValues,
+  DiagnosticSeverityValues,
 } from "./options.js";
 import { type SerializedResult } from "./serializer/types.js";
 import { TextPrinter } from "./utils/TextPrinter.js";
@@ -299,6 +300,10 @@ function run(
           break;
         case "debugDiagnosticSeverity":
           arg = args.shift();
+          if (!DiagnosticSeverityValues.includes(arg)) {
+            console.error(`Unsupported debugDiagnosticSeverity: ${arg}`);
+            process.exit(1);
+          }
           invariant(
             arg === "FatalError" || arg === "RecoverableError" || arg === "Warning" || arg === "Information",
             `Invalid debugger diagnostic severity: ${arg}`