fix(grammar): adapt to upstream regex change

UserNobody14 / tree-sitter-dart

Attempt to make a tree-sitter grammar for dart

MIT License

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fix(grammar): adapt to upstream regex change #71

Closed clason closed 2 months ago

clason commented 2 months ago

Upstream switched to Rust regex in recent tree-sitter, so the common escape_sequence pattern /u{[\da-fA-F]+}/ now needs to escape the braces. This fixes :TSInstallFromGrammar.

Also remove unnecessary conflicts reported by the CLI.