don't try to run Objective-C API=2 tests for Darwin < 9
testsuite:
* objc.dg/special/load-category-1.m: Remove unused header.
* objc.dg/special/load-category-1a.m: Likewise.
* objc.dg/special/load-category-2.m: Likewise.
* objc.dg/special/load-category-2a.m: Likewise.
* objc.dg/special/load-category-3.m: Likewise.
* objc.dg/special/load-category-3a.m: Likewise.
* objc.dg/attributes/proto-attribute-2.m: Likewise.
* objc.dg/attributes/proto-attribute-3.m: Likewise.
* objc.dg/attributes/class-attribute-1.m: Likewise.
* objc.dg/property/property.exp: Don't run for Darwin < 9.
* obj-c++.dg/property/property.exp: Likewise.
* objc.dg/attributes/method-sentinel-1.m: Update type header.
* obj-c++.dg/attributes/method-sentinel-1.mm: Likewise.
* obj-c++.dg/attributes/proto-attribute-2.mm: Skip for Darwin < 9.
* obj-c++.dg/attributes/class-attribute-1.mm: Likewise.
* obj-c++.dg/attributes/proto-attribute-3.mm: Likewise.
* obj-c++.dg/template-8.mm: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@170001
138bc75d-0d04-0410-961f-
82ee72b054a4