[clang] [clang][Sema] Skip the RequiresExprBodyDecls for lambda dependencies (PR #83997)

[David Blaikie via cfe-commits]

dwblaikie wrote:

FWIW, @jyknight's example fails to compile with GCC - succeeds with clang 18 release but assert-fails with clang 18 +Asserts build. (not sure about the original/full internal reproduction - we have a way to run compile with assertions enaled, but I'm not sure I'm holding it right... )

https://github.com/llvm/llvm-project/pull/83997