4.2.0.pre.1

Release note

Language updates

• Gate forwarding parameter syntax behind parser option (#3087)
• Support non-ASCII identifiers (#3082)
• Support forwarding parameters in method types (#3042)

Library changes

• Stop the lexer reading past the end of a byte_range (#3040)
• Exclude CR from comment tokens to fix an off-by-one Location#end_line on CRLF files (#3069)
• Handle the NULL parser in the WebAssembly shim (#3085)
• Reject a byte position the lexer cannot start on (#3083)
• Don't use Clang nullability qualifiers in strict ISO C mode (#3074)
• Avoid eagerly inspecting call traces in type assertions (#3073)
• Fix TypeParam.rename to substitute variables in bounds and default types (#3068)
• Extract per-declaration type param alignment into entry-level align_params (#3070)
• Align type params across declarations in module-self types and superclass validation (#3067)
• Build the wasm module with -DNDEBUG (#3066)
• Rename NODISCARD macro to RBS_NODISCARD (#3065)

Miscellaneous

• Skip JSON 2-only tests with JSON 3 (#3084)
• Pin GitHub Actions to commit hashes (#3020)