[clang-tools-extra] [clangd] DefineInline: only trigger on the declaration that has the body (PR #227534)

[via cfe-commits]

Mrgoudan wrote:

@kadircet @sam-mccall @HighCommander4 Could one of you take a look? Small fix to the DefineInline tweak's trigger guard; I don't have commit access, so I'd need a reviewer to merge once approved.

https://github.com/llvm/llvm-project/pull/227534