[llvm-dev] lld: Merging Symbol and SymbolBody

[Rui Ueyama via llvm-dev]

Hi guys,

I'm planning to merge Symbol and SymbolBody into one unified class, Symbol
in lld. That would be a pretty much mechanical change, but because symbols
are used everywhere, the patch would be a large one.

This mail is to heads-up, and if you have any concern, please let me know.

Background:

Symbol and SymbolBody are defined as separate classes for a historical
reason. Symbol used to be a pointer to SymbolBody, and the relationship
between Symbol and SymbolBody was 1:n. However, because Peter made a change
to allocate them next to each other, the relationship is now 1:1. So,
there's no reason to keep them separated anymore. Unifying them simplifies
the relationships between symbol classes.
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