[analyzer] [NFC] Reduce redundancy in RetainSummaryManager by using a function

[NoQ]

:)

clang/include/clang/StaticAnalyzer/Core/RetainSummaryManager.h

const RetainSummary *getSummaryForObjCOrCFObject(
     StringRef FName,
     QualType RetTy,
     const FunctionType *FT,
     bool &AllowAnnotations);
 
   /// Apply the annotation of {@code pd} in function {@code FD}
   /// to the resulting summary stored in out-parameter {@code Template}.
   /// \return whether an annotation was applied.
-  bool applyFunctionParamAnnotationEffect(const ParmVarDecl *pd,
-                                        unsigned parm_idx,
-                                        const FunctionDecl *FD,
-                                        RetainSummaryTemplate &Template);
+  bool applyParamAnnotationEffect(const ParmVarDecl *pd, unsigned parm_idx,
+                                  const NamedDecl *FD,
 
 public:
   RetainSummaryManager(ASTContext &ctx,
                        bool usesARC,
                        bool trackObjCAndCFObjects,
                        bool trackOSObjects)
    : Ctx(ctx),
      ARCEnabled(usesARC),

clang/lib/StaticAnalyzer/Core/RetainSummaryManager.cpp

RetainSummaryManager::getRetEffectFromAnnotations(QualType RetTy,
   if (const auto *MD = dyn_cast<CXXMethodDecl>(D))
     for (const auto *PD : MD->overridden_methods())
       if (auto RE = getRetEffectFromAnnotations(RetTy, PD))
         return RE;
 
   return None;
 }
 
-bool RetainSummaryManager::applyFunctionParamAnnotationEffect(
-    const ParmVarDecl *pd, unsigned parm_idx, const FunctionDecl *FD,
+bool RetainSummaryManager::applyParamAnnotationEffect(
+    const ParmVarDecl *pd, unsigned parm_idx, const NamedDecl *FD,
     RetainSummaryTemplate &Template) {
   QualType QT = pd->getType();
   if (auto K =
           hasAnyEnabledAttrOf<NSConsumedAttr, CFConsumedAttr, OSConsumedAttr,
                               GeneralizedConsumedAttr>(pd, QT)) {
     Template->addArg(AF, parm_idx, ArgEffect(DecRef, *K));
     return true;
   } else if (auto K =
                  hasAnyEnabledAttrOf<CFReturnsRetainedAttr,
                                      GeneralizedReturnsRetainedAttr>(pd, QT)) {
     Template->addArg(AF, parm_idx, ArgEffect(RetainedOutParameter, *K));
     return true;
   } else if (auto K = hasAnyEnabledAttrOf<CFReturnsNotRetainedAttr>(pd, QT)) {
     Template->addArg(AF, parm_idx, ArgEffect(UnretainedOutParameter, *K));
     return true;
   } else {
     if (const auto *MD = dyn_cast<CXXMethodDecl>(FD)) {
       for (const auto *OD : MD->overridden_methods()) {
         const ParmVarDecl *OP = OD->parameters()[parm_idx];
-        if (applyFunctionParamAnnotationEffect(OP, parm_idx, OD, Template))
+        if (applyParamAnnotationEffect(OP, parm_idx, OD, Template))
           return true;
       }
     }
   }
 
   return false;
 }
 
 void
 RetainSummaryManager::updateSummaryFromAnnotations(const RetainSummary *&Summ,
                                                    const FunctionDecl *FD) {
   if (!FD)
     return;
 
   assert(Summ && "Must have a summary to add annotations to.");
   RetainSummaryTemplate Template(Summ, *this);
 
   // Effects on the parameters.
   unsigned parm_idx = 0;
   for (auto pi = FD->param_begin(),
-         pe = FD->param_end(); pi != pe; ++pi, ++parm_idx) {
-    const ParmVarDecl *pd = *pi;
-    applyFunctionParamAnnotationEffect(pd, parm_idx, FD, Template);
-  }
+         pe = FD->param_end(); pi != pe; ++pi, ++parm_idx)
+    applyParamAnnotationEffect(*pi, parm_idx, FD, Template);
 
   QualType RetTy = FD->getReturnType();
   if (Optional<RetEffect> RetE = getRetEffectFromAnnotations(RetTy, FD))
     Template->setRetEffect(*RetE);
 
   if (hasAnyEnabledAttrOf<OSConsumesThisAttr>(FD, RetTy))
     Template->setThisEffect(ArgEffect(DecRef, ObjKind::OS));
 }
RetainSummaryManager::updateSummaryFromAnnotations(const RetainSummary *&Summ,
 
   // Effects on the receiver.
   if (hasAnyEnabledAttrOf<NSConsumesSelfAttr>(MD, MD->getReturnType()))
     Template->setReceiverEffect(ArgEffect(DecRef, ObjKind::ObjC));
 
   // Effects on the parameters.
   unsigned parm_idx = 0;
   for (auto pi = MD->param_begin(), pe = MD->param_end(); pi != pe;
-       ++pi, ++parm_idx) {
-    const ParmVarDecl *pd = *pi;
-    QualType QT = pd->getType();
-    if (auto K =
-            hasAnyEnabledAttrOf<NSConsumedAttr, CFConsumedAttr, OSConsumedAttr>(
-                pd, QT)) {
-      Template->addArg(AF, parm_idx, ArgEffect(DecRef, *K));
-    } else if (auto K = hasAnyEnabledAttrOf<CFReturnsRetainedAttr>(pd, QT)) {
-      Template->addArg(AF, parm_idx, ArgEffect(RetainedOutParameter, *K));
-    } else if (auto K = hasAnyEnabledAttrOf<CFReturnsNotRetainedAttr>(pd, QT)) {
-      Template->addArg(AF, parm_idx, ArgEffect(UnretainedOutParameter, *K));
-    }
-  }
+       ++pi, ++parm_idx)
+    applyParamAnnotationEffect(*pi, parm_idx, MD, Template);
+
   QualType RetTy = MD->getReturnType();
   if (Optional<RetEffect> RetE = getRetEffectFromAnnotations(RetTy, MD))
     Template->setRetEffect(*RetE);
 }
 
 const RetainSummary *
 RetainSummaryManager::getStandardMethodSummary(const ObjCMethodDecl *MD,
                                                Selector S, QualType RetTy) {