Remove the ref/value inconsistency in filter_decl_iterator.

filter_decl_iterator had a weird mismatch where both op* and op-> returned T*
making it difficult to generalize this filtering behavior into a reusable
library of any kind.

This change errs on the side of value, making op-> return T* and op* return
T&.

(reviewed by Richard Smith)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155808 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ARCMigrate/TransProperties.cpp b/lib/ARCMigrate/TransProperties.cpp
index cc85fe2..8f65fc3 100644
--- a/lib/ARCMigrate/TransProperties.cpp
+++ b/lib/ARCMigrate/TransProperties.cpp
@@ -85,7 +85,7 @@
         if (PrevAtProps->find(RawLoc) != PrevAtProps->end())
           continue;
       PropsTy &props = AtProps[RawLoc];
-      props.push_back(*propI);
+      props.push_back(&*propI);
     }
   }
 
@@ -102,7 +102,7 @@
     for (prop_impl_iterator
            I = prop_impl_iterator(D->decls_begin()),
            E = prop_impl_iterator(D->decls_end()); I != E; ++I) {
-      ObjCPropertyImplDecl *implD = *I;
+      ObjCPropertyImplDecl *implD = &*I;
       if (implD->getPropertyImplementation() != ObjCPropertyImplDecl::Synthesize)
         continue;
       ObjCPropertyDecl *propD = implD->getPropertyDecl();