[SourceKitten] Extract local var in deduplicate_declarations.
[SourceKitten] Extract local var in deduplicate_declarations.

jeeftor/jazzy,emiscience/jazzy,jeeftor/jazzy,jeeftor/jazzy,AliSoftware/jazzy,1ec5/jazzy,Kapeli/jazzy,AliSoftware/jazzy,agentk/jazzy,johndpope/jazzy,agentk/jazzy,PSPDFKit-labs/jazzy,agentk/jazzy,johndpope/jazzy,Kapeli/jazzy,emiscience/jazzy,1ec5/jazzy,Kapeli/jazzy,PSPDFKit-labs/jazzy,johndpope/jazzy,mbogh/jazzy,mbogh/jazzy,emiscience/jazzy,mbogh/jazzy,realm/jazzy,realm/jazzy,pcantrell/jazzy,AliSoftware/jazzy,1ec5/jazzy,pcantrell/jazzy,pcantrell/jazzy