Auto merge of #24344 - saschanaz:vslatest, r=jdm

Support `--features vslatestinstalled`

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Matches https://github.com/servo/rust-mozjs/pull/477.

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #24331

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components/script/Cargo.toml

@@ -20,6 +20,7 @@ default = ["unrooted_must_root_lint"]
 webgl_backtrace = ["backtrace", "canvas_traits/webgl_backtrace"]
 js_backtrace = ["backtrace"]
 uwp = ["js/uwp"]
+vslatestinstalled = ["js/vslatestinstalled"]
 
 [build-dependencies]
 phf_codegen = "0.7"

components/servo/Cargo.toml

@@ -35,6 +35,7 @@ webgl_backtrace = [
     "canvas/webgl_backtrace",
     "canvas_traits/webgl_backtrace",
 ]
+vslatestinstalled = ["script/vslatestinstalled"]
 
 [dependencies]
 background_hang_monitor = {path = "../background_hang_monitor"}