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).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeCompletion/truncation.c b/test/CodeCompletion/truncation.c
index 5af3c4b..c770635 100644
--- a/test/CodeCompletion/truncation.c
+++ b/test/CodeCompletion/truncation.c
@@ -2,10 +2,10 @@
 
 struct 
 
-// RUN: clang-cc -fsyntax-only -code-completion-at=%s.h:4:8 -o - %s | FileCheck -check-prefix=CC1 %s
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s.h:4:8 -o - %s | FileCheck -check-prefix=CC1 %s
 // CHECK-CC1: X : 1
 // CHECK-CC1-NEXT: Y : 1
-// RUN: clang-cc -fsyntax-only -code-completion-at=%s:3:8 -o - %s | FileCheck -check-prefix=CC2 %s
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:3:8 -o - %s | FileCheck -check-prefix=CC2 %s
 // CHECK-CC2: X : 1
 // CHECK-CC2: Xa : 1
 // CHECK-CC2: Y : 1