stabilize stage management for `rustc` tools, especially on `cargo` - #135990

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onur-ozkan wants to merge 11 commits into

rust-lang:masterfrom

onur-ozkan:stabilize-stage-handling

Commits on Feb 17, 2025

refactor `ToolBuild` to handle compiler tool stages
onur-ozkan
committed
cf1d3e5
make `LlvmBitcodeLinker` and `Rustdoc` to use `ToolBuild`
onur-ozkan
committed
dafdcb7
let `ToolBuild` to handle compiler tool stages automatically
onur-ozkan
committed
51623ec
apply rustdoc lto in `ToolBuild`
onur-ozkan
committed
da91fac
use target compiler for `LlvmBitcodeLinker`
onur-ozkan
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74125fe
keep `Rustc` private and use `Assemble` instead
onur-ozkan
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92c12b3
add doc-comments on `compile::Rustc`
onur-ozkan
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d4e728d
document bootstrap `tool` module
onur-ozkan
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4857f03
improve staging api
onur-ozkan
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fecb681
apply some nits and add coverage for `downgraded_from`
onur-ozkan
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b661310
test
onur-ozkan
committed
186cb6f