Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
 - This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
diff --git a/clang/test/Index/c-index-pch.c b/clang/test/Index/c-index-pch.c
index 1ce1085..2037fc5 100644
--- a/clang/test/Index/c-index-pch.c
+++ b/clang/test/Index/c-index-pch.c
@@ -1,5 +1,5 @@
-// RUN: clang-cc -emit-pch -x c -o %t.pch %S/Inputs/c-index-pch.h
-// RUN: clang-cc -include-pch %t.pch -x c -emit-pch -o %t.ast %s
+// RUN: %clang_cc1 -emit-pch -x c -o %t.pch %S/Inputs/c-index-pch.h
+// RUN: %clang_cc1 -include-pch %t.pch -x c -emit-pch -o %t.ast %s
 // RUN: c-index-test -test-load-tu %t.ast all | FileCheck -check-prefix=ALL %s
 // RUN: c-index-test -test-load-tu %t.ast local | FileCheck -check-prefix=LOCAL %s
 // ALL: FunctionDecl=foo