Rollup merge of rust-lang#70774 - GuillaumeGomez:clean-rustdoc-js-tools, r=ollie27

End cleanup on rustdoc-js tools

Fixes rust-lang#70689.

It removes a lot of code, which is pretty nice. :3

We now only have one entry point and a small set of options.

r? @ollie27

Author: Dylan-DPC

src/bootstrap/test.rs

@@ -627,8 +627,14 @@ impl Step for RustdocJSStd {
         if let Some(ref nodejs) = builder.config.nodejs {
             let mut command = Command::new(nodejs);
             command
-                .arg(builder.src.join("src/tools/rustdoc-js-std/tester.js"))
+                .arg(builder.src.join("src/tools/rustdoc-js/tester.js"))
+                .arg("--crate-name")
+                .arg("std")
+                .arg("--resource-suffix")
+                .arg(crate::channel::CFG_RELEASE_NUM)
+                .arg("--doc-folder")
                 .arg(builder.doc_out(self.target))
+                .arg("--test-folder")
                 .arg(builder.src.join("src/test/rustdoc-js-std"));
             builder.ensure(crate::doc::Std { target: self.target, stage: builder.top_stage });
             builder.run(&mut command);

src/tools/compiletest/src/runtest.rs

@@ -2810,10 +2810,16 @@ impl<'test> TestCx<'test> {
             self.document(&out_dir);
 
             let root = self.config.find_rust_src_root().unwrap();
+            let file_stem =
+                self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem");
             let res = self.cmd2procres(
                 Command::new(&nodejs)
                     .arg(root.join("src/tools/rustdoc-js/tester.js"))
-                    .arg(out_dir.parent().expect("no parent"))
+                    .arg("--doc-folder")
+                    .arg(out_dir)
+                    .arg("--crate-name")
+                    .arg(file_stem.replace("-", "_"))
+                    .arg("--test-file")
                     .arg(self.testpaths.file.with_extension("js")),
             );
             if !res.status.success() {