Some compilation flags are unclear

[fingerartur]

Some compilation flags are unclear, hard to understand or find out what they do or insufficiently documented. Specifically, I am talking about the wiki section on compiler flags.

Let's have a look at some of those flags:

1. compilation_level - what does --compilation_level=BUNDLE do? Compilation level is described here in the Google doc but there is no mention of BUNDLE. Plus it would be great if each option was described in a bit more detail, or at least via a link.
2. env - what is --env=CUSTOM and how to use it?
3. externs - shouldn't this be deprecated as explained here in the Google doc?
4. warning_level - the default warning level value is DEFAULT ... what does that mean?
5. process_common_js_modules - this should probably be true by default (as mentioned here), or in case it is experimental, it should be marked as experimental
6. module_resolution - what is --module_resolution=BROWSER_WITH_TRANSFORMED_PREFIXES, what is --module_resolution=WEBPACK? These options should be described in a bit more detail, or via a link. What is the difference between WEBPACK and NODE? It should also be noted that in order to import from node_modules, --module_resolution=NODE must be used, nothing else seems to work for that.
7. force_inject_library - what is base and es6_runtime? I thought base was Google Closure base.js but it does not seem so.
8. source_map_input, source_map_location_mapping - what is the difference between them? Maybe give an example.
9. third_party - it is described as "Check source validity but do not enforce Closure style rules and conventions" ... what are the Closure style rules? Where can I find documentation on that?
10. js - it should be mentioned that these are Javascript input files to be bundled. It should also mention that in order to use libraries from node_modules, the JS files and package.json from node_modules must be listed here as well. On top of that, externs files, which are not really source files but rather API/structure definitions, should be listed here as well.

Compiler Version: v20230103