Rollup of 7 pull requests

[Manishearth]

Successful merges:

• avoid making substs of type aliases late bound when used as fn args #100508 (avoid making substs of type aliases late bound when used as fn args)
• Test that target feature mix up with homogeneous floats is sound #101381 (Test that target feature mix up with homogeneous floats is sound)
• Fix Access Violation when using lld & ThinLTO on windows-msvc #103353 (Fix Access Violation when using lld & ThinLTO on windows-msvc)
• 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)
• first move on a nested span_label #103559 (first move on a nested span_label)
• Update several crates for improved support of the new targets #103778 (Update several crates for improved support of the new targets)
• Properly remap and check for substs compatibility in confirm_impl_trait_in_trait_candidate #103827 (Properly remap and check for substs compatibility in confirm_impl_trait_in_trait_candidate)

Failed merges:

r? @ghost
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