[5.7] [Parse] Introduce /.../ regex literals
#42352
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This allows us to hold tentative diagnostics independent of other diagnostic transactions.
Queue up diagnostics when lexing, waiting until `Lexer::lex` is called before emitting them. This allows us to re-lex without having to deal with previously invalid tokens.
Change the flag to imply '-enable-experimental-string-processing', and and update some tests to start using it.
When forward slash regex is enabled, start emitting an error on prefix operators containing the `/` character.
This spelling is no longer used.
Start parsing regex literals with `/.../` delimiters. rdar://83253726
Introduce a frontend flag that disables experimental string processing, including `/.../` literals.
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@swift-ci please test |
airspeedswift
approved these changes
Apr 14, 2022
AnthonyLatsis
added
🍒 release cherry pick
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5.7 cherry-pick of #42119 + #42340
Start parsing regex literals with
/.../delimiters when-enable-bare-slash-regexis passed. Additionally, introduce a-disable-experimental-string-processingfrontend flag that disables experimental string processing, including/.../literals.rdar://83253726