Fix top of tree Clang unused lambda capture warnings

Author: hughbe

lib/AST/GenericSignatureBuilder.cpp

@@ -3698,7 +3698,7 @@ void GenericSignatureBuilder::enumerateRequirements(llvm::function_ref<
         // to the next.
         // FIXME: Distinguish between explicit and inferred here?
         auto otherPA = nextAnchor->anchor;
-        deferredSameTypeRequirement = [&f, archetype, otherPA, this] {
+        deferredSameTypeRequirement = [&f, archetype, otherPA] {
           f(RequirementKind::SameType, archetype, otherPA,
             RequirementSource::forAbstract(archetype));
         };

lib/Driver/DependencyGraph.cpp

@@ -251,7 +251,7 @@ LoadResult DependencyGraphImpl::loadFromBuffer(const void *node,
   };
 
   auto providesCallback =
-      [this, node, &provides](StringRef name, DependencyKind kind,
+      [&provides](StringRef name, DependencyKind kind,
                               bool isCascading) -> LoadResult {
     assert(isCascading);
     auto iter = std::find_if(provides.begin(), provides.end(),

lib/Parse/ParseSIL.cpp

@@ -4396,8 +4396,7 @@ bool Parser::parseDeclSIL() {
         FunctionState.ParsedTypeCallback = OldParsedTypeCallback;
       };
 
-      FunctionState.ParsedTypeCallback = [&OpenedArchetypesTracker,
-                                          &FunctionState](Type ty) {
+      FunctionState.ParsedTypeCallback = [&OpenedArchetypesTracker](Type ty) {
         OpenedArchetypesTracker.registerUsedOpenedArchetypes(
           ty->getCanonicalType());
       };

lib/PrintAsObjC/PrintAsObjC.cpp

@@ -1388,7 +1388,7 @@ class ObjCPrinter : private DeclVisitor<ObjCPrinter>,
   void printCollectionElement(Type ty) {
     ASTContext &ctx = M.getASTContext();
 
-    auto isSwiftNewtype = [&ctx](const StructDecl *SD) -> bool {
+    auto isSwiftNewtype = [](const StructDecl *SD) -> bool {
       if (!SD)
         return false;
       auto *clangDecl = SD->getClangDecl();
@@ -2577,8 +2577,8 @@ class ModuleWriter {
       // alphabetically first.
       auto mismatch =
         std::mismatch(lhsProtos.begin(), lhsProtos.end(), rhsProtos.begin(),
-                      [getSortName] (const ProtocolDecl *nextLHSProto,
-                                     const ProtocolDecl *nextRHSProto) {
+                      [] (const ProtocolDecl *nextLHSProto,
+                          const ProtocolDecl *nextRHSProto) {
         return nextLHSProto->getName() != nextRHSProto->getName();
       });
       if (mismatch.first == lhsProtos.end())

lib/SILOptimizer/Transforms/SpeculativeDevirtualizer.cpp

@@ -397,7 +397,7 @@ static bool tryToSpeculateTarget(FullApplySite AI,
     // specific bound class.
     auto RemovedIt = std::remove_if(Subs.begin(),
         Subs.end(),
-        [&ClassType, &M](ClassDecl *Sub){
+        [&ClassType](ClassDecl *Sub){
           auto SubCanTy = Sub->getDeclaredType()->getCanonicalType();
           // Unbound generic type can override a method from
           // a bound generic class, but this unbound generic

lib/SILOptimizer/Utils/Devirtualize.cpp

@@ -67,7 +67,7 @@ static void getAllSubclasses(ClassHierarchyAnalysis *CHA,
     // Filter out any subclasses that do not inherit from this
     // specific bound class.
     auto RemovedIt = std::remove_if(Subs.begin(), Subs.end(),
-        [&ClassType, &M](ClassDecl *Sub){
+        [&ClassType](ClassDecl *Sub){
           auto SubCanTy = Sub->getDeclaredType()->getCanonicalType();
           // Unbound generic type can override a method from
           // a bound generic class, but this unbound generic

lib/Sema/TypeCheckProtocol.cpp

@@ -1037,7 +1037,7 @@ RequirementEnvironment::RequirementEnvironment(
         GenericTypeParamType::get(depth, genericParam->getIndex(), ctx);
       return substGenericParam;
     },
-    [selfType, concreteType, conformance, conformanceDC, &ctx, &tc](
+    [selfType, concreteType, conformance, conformanceDC, &ctx](
         CanType type, Type replacement, ProtocolType *protoType)
           -> Optional<ProtocolConformanceRef> {
       auto proto = protoType->getDecl();
@@ -2496,7 +2496,7 @@ void ConformanceChecker::recordTypeWitness(AssociatedTypeDecl *assocType,
       // Avoid relying on the lifetime of 'this'.
       const DeclContext *DC = this->DC;
       diagnoseOrDefer(assocType, false,
-        [DC, typeDecl, requiredAccessScope, assocType](
+        [DC, typeDecl, requiredAccessScope](
           NormalProtocolConformance *conformance) {
         Accessibility requiredAccess =
           requiredAccessScope.requiredAccessibilityForDiagnostics();