llvm-project

e90ab0e3 - [Serialization] Remove delta encoding optimization (#145670)

[Serialization] Remove delta encoding optimization (#145670) See the discussion in https://github.com/llvm/llvm-project/pull/145529. This will slightly increase the PCM size (~5%), some data (in-memory preamble size in clangd): - SemaExpr.cpp: 77MB -> 80MB - FindTarget.cpp: 71MB -> 75MB