[PATCH] D76960: [lld][WebAssembly] Early error if output file cannot be created.

[Sam Clegg via Phabricator via llvm-commits]

sbc100 created this revision.
Herald added subscribers: llvm-commits, dexonsmith, steven_wu, sunfish, aheejin, hiraditya, jgravelle-google, dschuff.
Herald added a project: LLVM.
sbc100 added a reviewer: ruiu.

This matches the behaviour of the ELF driver.

Also move the `createFiles` to be `checkConfig` and report `no input
files` there.   Again this is mostly to match the structure of the ELF
linker better.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76960

Files:
  lld/test/wasm/early-exit-for-bad-paths.s
  lld/test/wasm/lto/opt-level.ll
  lld/test/wasm/responsefile.test
  lld/wasm/Driver.cpp

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