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Matthias Krüger b41e939cb5
Rollup merge of #123951 - pitaj:reserve-guarded-strings, r=traviscross 
Reserve guarded string literals (RFC 3593)

Implementation for RFC 3593, including:
- lexer / parser changes
- diagnostics
- migration lint
- tests

We reserve `#"`, `##"`, `###"`, `####`, and any other string of four or more repeated `#`. This avoids infinite lookahead in the lexer, though we still use infinite lookahead in the parser to provide better forward compatibility diagnostics.

This PR does not implement any special lexing of the string internals:
- strings preceded by one or more `#` are denied
- regardless of the number of trailing `#`
- string contents are lexed as if it was just a bare `"string"`

Tracking issue: #123735
RFC: rust-lang/rfcs#3593
2024-10-09 23:03:47 +02:00
..
assembly more asm! -> naked_asm! in tests 2024-10-06 18:12:25 +02:00
auxiliary
codegen Auto merge of #131387 - Zalathar:rollup-kprp512, r=Zalathar 2024-10-08 04:38:04 +00:00
codegen-units Fix and enable disabled codegen-units tests 2024-08-10 14:03:27 -04:00
coverage Simplify the directives for ignoring coverage-test modes 2024-10-08 22:51:53 +11:00
coverage-run-rustdoc
crashes more asm! -> naked_asm! in tests 2024-10-06 18:12:25 +02:00
debuginfo Reorder stack spills so that constants come later. 2024-09-17 16:45:26 -07:00
incremental Bless incremental tests. 2024-10-04 23:50:01 +00:00
mir-opt Disable slice_iter mir-opt test in debug builds 2024-10-07 12:23:27 -04:00
pretty Use doc(hidden) instead of allow(missing_docs) in the test harness 2024-09-11 12:14:35 +02:00
run-make Rename directive needs-profiler-support to needs-profiler-runtime 2024-10-09 20:58:27 +11:00
rustdoc Auto merge of #131076 - lukas-code:doc-stab2, r=notriddle 2024-10-01 04:30:33 +00:00
rustdoc-gui Rollup merge of #131257 - GuillaumeGomez:fix-list-margins, r=notriddle 2024-10-04 14:11:38 -07:00
rustdoc-js rustdoc-search: allow trailing Foo -> arg search 2024-09-05 17:58:05 -07:00
rustdoc-js-std Fix rustdoc-js-std path-ordering test due to API removal 2024-10-02 11:15:48 +02:00
rustdoc-json Reformat using the new identifier sorting from rustfmt 2024-09-22 19:11:29 -04:00
rustdoc-ui Rollup merge of #131260 - notriddle:notriddle/disambiguator-error, r=GuillaumeGomez 2024-10-04 19:19:25 -07:00
ui Rollup merge of #123951 - pitaj:reserve-guarded-strings, r=traviscross 2024-10-09 23:03:47 +02:00
ui-fulldeps Remove feature(control_flow_enum) in tests 2024-09-25 19:00:19 -07:00
COMPILER_TESTS.md