[PATCH] D105519: [WebAssembly] Deduplicate imports of the same module name, field name, and type

[Nick Fitzgerald via Phabricator via llvm-commits]

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When two symbols import the same thing, only one import should be emitted in the Wasm file.

Fixes https://bugs.llvm.org/show_bug.cgi?id=50938


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105519

Files:
  lld/test/wasm/duplicate-function-imports.ll
  lld/test/wasm/duplicate-global-imports.s
  lld/test/wasm/duplicate-table-imports.s
  lld/wasm/SyntheticSections.cpp
  lld/wasm/SyntheticSections.h
  llvm/include/llvm/BinaryFormat/Wasm.h
  llvm/include/llvm/BinaryFormat/WasmTraits.h

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