[Sema] Add warning for unused lambda captures
Summary: Warn when a lambda explicitly captures something that is not used in its body. The warning is part of -Wunused and can be enabled with -Wunused-lambda-capture. Reviewers: rsmith, arphaman, jbcoe, aaron.ballman Subscribers: Quuxplusone, arphaman, cfe-commits Differential Revision: https://reviews.llvm.org/D28467 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@291905 91177308-0d34-0410-b5e6-96231b3b80d8
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- include/clang/Basic/DiagnosticGroups.td 4 additions, 2 deletionsinclude/clang/Basic/DiagnosticGroups.td
- include/clang/Basic/DiagnosticSemaKinds.td 3 additions, 0 deletionsinclude/clang/Basic/DiagnosticSemaKinds.td
- include/clang/Sema/ScopeInfo.h 15 additions, 2 deletionsinclude/clang/Sema/ScopeInfo.h
- include/clang/Sema/Sema.h 3 additions, 0 deletionsinclude/clang/Sema/Sema.h
- lib/Sema/SemaExpr.cpp 3 additions, 1 deletionlib/Sema/SemaExpr.cpp
- lib/Sema/SemaExprCXX.cpp 1 addition, 0 deletionslib/Sema/SemaExprCXX.cpp
- lib/Sema/SemaLambda.cpp 21 additions, 2 deletionslib/Sema/SemaLambda.cpp
- test/CXX/expr/expr.prim/expr.prim.lambda/p12.cpp 1 addition, 1 deletiontest/CXX/expr/expr.prim/expr.prim.lambda/p12.cpp
- test/CXX/expr/expr.prim/expr.prim.lambda/p13.cpp 1 addition, 1 deletiontest/CXX/expr/expr.prim/expr.prim.lambda/p13.cpp
- test/CXX/expr/expr.prim/expr.prim.lambda/p16.cpp 1 addition, 1 deletiontest/CXX/expr/expr.prim/expr.prim.lambda/p16.cpp
- test/CXX/expr/expr.prim/expr.prim.lambda/p18.cpp 1 addition, 1 deletiontest/CXX/expr/expr.prim/expr.prim.lambda/p18.cpp
- test/CXX/expr/expr.prim/expr.prim.lambda/p19.cpp 1 addition, 1 deletiontest/CXX/expr/expr.prim/expr.prim.lambda/p19.cpp
- test/SemaCXX/uninitialized.cpp 1 addition, 1 deletiontest/SemaCXX/uninitialized.cpp
- test/SemaCXX/warn-unused-lambda-capture.cpp 110 additions, 0 deletionstest/SemaCXX/warn-unused-lambda-capture.cpp
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