Implement property '.' notation on Factory/Class objects. Parser changes aren't very pretty:-(

This fixes <rdar://problem/6496506> Implement class setter/getter for properties.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66465 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Parser/check-objc2-syntax-1.m b/test/Parser/check-objc2-syntax-1.m
index b0b0e8a..967fa75 100644
--- a/test/Parser/check-objc2-syntax-1.m
+++ b/test/Parser/check-objc2-syntax-1.m
@@ -5,6 +5,6 @@
 @end
 
 int main (void) {
-  return Subclass.magicNumber; // expected-error {{unexpected interface name 'Subclass': expected expression}}
+  return Subclass.magicNumber;
 }