Use instance_properties instead of properties. NFC.

All current properties are instance properties.

This is the second patch in a series of patches to support class properties
in addition to instance properties in objective-c.

rdar://23891898

llvm-svn: 258824
diff --git a/clang/lib/Frontend/Rewrite/RewriteObjC.cpp b/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
index e0ddadb..67b2bde 100644
--- a/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
+++ b/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
@@ -969,7 +969,7 @@
   // FIXME: handle category headers that are declared across multiple lines.
   ReplaceText(LocStart, 0, "// ");
 
-  for (auto *I : CatDecl->properties())
+  for (auto *I : CatDecl->instance_properties())
     RewriteProperty(I);  
   for (auto *I : CatDecl->instance_methods())
     RewriteMethodDeclaration(I);
@@ -992,7 +992,7 @@
     RewriteMethodDeclaration(I);
   for (auto *I : PDecl->class_methods())
     RewriteMethodDeclaration(I);
-  for (auto *I : PDecl->properties())
+  for (auto *I : PDecl->instance_properties())
     RewriteProperty(I);
   
   // Lastly, comment out the @end.
@@ -1210,7 +1210,7 @@
   }
   RewriteObjCInternalStruct(ClassDecl, ResultStr);
 
-  for (auto *I : ClassDecl->properties())
+  for (auto *I : ClassDecl->instance_properties())
     RewriteProperty(I);
   for (auto *I : ClassDecl->instance_methods())
     RewriteMethodDeclaration(I);