[JS IR] Fixes in tests

- Compilation of tests
- add arguments to extra help

compiler/testData/cli/js/jsExtraHelp.out

@@ -8,6 +8,7 @@ where advanced options include:
   -Xfriend-modules-disabled  Disable internal declaration export
   -Xgenerate-dts             Generate TypeScript declarations .d.ts file alongside JS file. Available in IR backend only.
   -Xinclude=<path>           A path to an intermediate library that should be processed in the same manner as source files.
+  -Xir-base-class-in-metadata Write base class into metadata
   -Xir-build-cache           Use compiler to build cache
   -Xir-dce                   Perform experimental dead code elimination
   -Xir-dce-driven            Perform a more experimental faster dead code elimination
@@ -15,9 +16,12 @@ where advanced options include:
                              Print declarations' reachability info to stdout during performing DCE
   -Xir-dce-runtime-diagnostic={log|exception}
                              Enable runtime diagnostics when performing DCE instead of removing declarations
+  -Xir-force-all-js          Compile all the code unconditionally
+  -Xir-legacy-property-access Force property access via JS properties (requires -Xir-export-all)
   -Xir-module-name=<name>    Specify a compilation module name for IR backend
   -Xir-only                  Disables pre-IR backend
   -Xir-per-module            Splits generated .js per-module
+  -Xir-per-module-output-name Adds a custom output name to the splitted js files
   -Xir-produce-js            Generates JS file using IR backend. Also disables pre-IR backend
   -Xir-produce-klib-dir      Generate unpacked KLIB into parent directory of output JS file.
                              In combination with -meta-info generates both IR and pre-IR versions of library.