[clang-tidy] - PerformanceUnnecesaryCopyInitialization - only trigger for decl stmts with single VarDecl.

Summary: This fixes bug: https://llvm.org/bugs/show_bug.cgi?id=27325

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19865

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@269389 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed