Rollup of 9 pull requests

[GuillaumeGomez]

Successful merges:

• Avoid possible infinite loop when next_point reaching the end of file #103521 (Avoid possible infinite loop when next_point reaching the end of file)
• Fix rustc_parse_format spans following escaped utf-8 multibyte chars #103651 (Fix rustc_parse_format spans following escaped utf-8 multibyte chars)
• Upgrade cc for working is_flag_supported on cross-compiles #103744 (Upgrade cc for working is_flag_supported on cross-compiles)
• Unescaping cleanups #103919 (Unescaping cleanups)
• Promote {aarch64,i686,x86_64}-unknown-uefi to Tier 2 #103933 (Promote {aarch64,i686,x86_64}-unknown-uefi to Tier 2)
• Don't intra linkcheck reference #103952 (Don't intra linkcheck reference)
• Update linker-plugin-lto.md to contain up to Rust 1.65 #103955 (Update linker-plugin-lto.md to contain up to Rust 1.65)
• fix debuginfo for windows_gnullvm_base.rs #104067 (fix debuginfo for windows_gnullvm_base.rs)
• Fix invalid background-image file name #104114 (Fix invalid background-image file name)

Failed merges:

r? @ghost
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