There's no such thing as %clang_cc1_only

These were being substituted into approximately the following:

  clang -cc1 -internal-isystem ../lib/clang/3.5/include_only

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@196730 91177308-0d34-0410-b5e6-96231b3b80d8

Author: atoker

test/Sema/decl-in-prototype.c

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1_only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify %s
 
 const int AA = 5;
 

test/Sema/fn-ptr-as-fn-prototype.c

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1_only -ast-print %s | FileCheck %s
+// RUN: %clang_cc1 -ast-print %s | FileCheck %s
 
 // This testcase checks the functionality of 
 // Sema::ActOn{Start,End}FunctionDeclarator, specifically checking that