Rollup of 5 pull requests

[Dylan-DPC]

Successful merges:

• Add assertion that transmute_copy's U is not larger than T #98839 (Add assertion that transmute_copy's U is not larger than T)
• Windows: Use FindFirstFileW for getting the metadata of locked system files #98916 (Windows: Use FindFirstFileW for getting the metadata of locked system files)
• add missing null ptr check in alloc example #99198 (add missing null ptr check in alloc example)
• Use LocalDefId in OpaqueTypeKey #99347 (Use LocalDefId in OpaqueTypeKey)
• interpret/visitor: add missing early return #99378 (interpret/visitor: add missing early return)

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

[Dylan-DPC]

@bors r+ rollup=never p=5

[bors]

📌 Commit 54c6c97 has been approved by Dylan-DPC

It is now in the queue for this repository.

[rust-log-analyzer]

The job mingw-check failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

    Checking rustc_codegen_llvm v0.0.0 (/checkout/compiler/rustc_codegen_llvm)
error[E0308]: mismatched types
    --> compiler/rustc_typeck/src/check/compare_method.rs:1516:35
     |
1516 |                     tcx.mk_opaque(key.def_id, key.substs),
     |                         --------- ^^^^^^^^^^ expected struct `DefId`, found struct `LocalDefId`
     |                         arguments to this function are incorrect
     |
note: return type inferred to be `DefId` here
    --> compiler/rustc_typeck/src/check/compare_method.rs:1490:20
    --> compiler/rustc_typeck/src/check/compare_method.rs:1490:20
     |
1490 |             return Err(reported);
     |                    ^^^^^^^^^^^^^
note: associated function defined here
    --> /checkout/compiler/rustc_middle/src/ty/context.rs:2632:12
     |
2632 |     pub fn mk_opaque(self, def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> {

For more information about this error, try `rustc --explain E0308`.
error: could not compile `rustc_typeck` due to previous error
warning: build failed, waiting for other jobs to finish...