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r=estebank
Don't include bang in macro replacement suggestion
When we suggest the replacement for a macro we include the "!" in the suggested replacement but the span only contains the name of the macro itself. Using that replacement would cause a duplicate "!" in the resulting code.
I originally tried to extend the span to be replaced by 1 byte in rust-lang/rust#47424. However, @zackmdavis pointed out that there can be whitespace between the macro name and the bang.
Instead, just remove the bang from the suggested replacement.
Fixes #47418
r? @estebank
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When we suggest the replacement for a macro we include the "!" in the
suggested replacement but the span only contains the name of the macro
itself. Using that replacement would cause a duplicate "!" in the
resulting code.
I originally tried to extend the span to be replaced by 1 byte in
rust-lang/rust#47424. However, @zackmdavis pointed out that there can be
whitespace between the macro name and the bang.
Instead, just remove the bang from the suggested replacement.
Fixes #47418
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When a ui-fulldeps comparison fails it suggests running
update-references.sh:
```
src/test/ui-fulldeps/update-references.sh 'rust/build/x86_64-apple-darwin/test/ui-fulldeps' 'resolve-error.rs'
```
This does not work as update-references.sh isn't executable. The other
update-references.sh in the ui directory is already executable so this looks
like an oversight.
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It tested #44953.
`log` macros in newer versions are no longer recursive, so these duplicated
error messages (about unstable feature uses) previously occurring at each
level of recursion are no longer possible, even with the fix by #45540.
Furthermore this test breaks when multiple versions of `log` are in the
sysroot (`log 0.3.9` depends on`log 0.4.1`)
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Remove a couple of obsolete lints
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This commit introduces the ability to create and emit `Diagnostic`
structures from proc-macros, allowing for proc-macro authors to emit
warning, error, note, and help messages just like the compiler does.
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In preparation for incremental compilation this commit refactors the lint
handling infrastructure in the compiler to be more "eager" and overall more
incremental-friendly. Many passes of the compiler can emit lints at various
points but before this commit all lints were buffered in a table to be emitted
at the very end of compilation. This commit changes these lints to be emitted
immediately during compilation using pre-calculated lint level-related data
structures.
Linting today is split into two phases, one set of "early" lints run on the
`syntax::ast` and a "late" set of lints run on the HIR. This commit moves the
"early" lints to running as late as possible in compilation, just before HIR
lowering. This notably means that we're catching resolve-related lints just
before HIR lowering. The early linting remains a pass very similar to how it was
before, maintaining context of the current lint level as it walks the tree.
Post-HIR, however, linting is structured as a method on the `TyCtxt` which
transitively executes a query to calculate lint levels. Each request to lint on
a `TyCtxt` will query the entire crate's 'lint level data structure' and then go
from there about whether the lint should be emitted or not.
The query depends on the entire HIR crate but should be very quick to calculate
(just a quick walk of the HIR) and the red-green system should notice that the
lint level data structure rarely changes, and should hopefully preserve
incrementality.
Overall this resulted in a pretty big change to the test suite now that lints
are emitted much earlier in compilation (on-demand vs only at the end). This in
turn necessitated the addition of many `#![allow(warnings)]` directives
throughout the compile-fail test suite and a number of updates to the UI test
suite.
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The 'run-pass' header cause a 'ui' test to execute the result. It is used
to test the lint output, at the same time ensure those lints won't cause
the source code to become compile-fail.
12 run-pass/run-pass-fulldeps tests gained the header and are moved to
ui/ui-fulldeps. After this move, no run-pass/run-pass-fulldeps tests should
rely on the compiler's JSON message. This allows us to stop passing
`--error-format json` in run-pass tests, thus fixing #36516.
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