Fix FileCheck --check-prefix lines.

Various tests had sprung up over the years which had --check-prefix=ABC on the
RUN line, but "CHECK-ABC:" later on. This happened to work before, but was
strictly incorrect. FileCheck is getting stricter soon though.

Patch by Ron Ofir.

llvm-svn: 188174
diff --git a/clang/test/Index/TestClassDecl.m b/clang/test/Index/TestClassDecl.m
index 038353b..899765e 100644
--- a/clang/test/Index/TestClassDecl.m
+++ b/clang/test/Index/TestClassDecl.m
@@ -1,6 +1,6 @@
 // RUN: c-index-test -write-pch %t.ast -fobjc-nonfragile-abi -fblocks -x objective-c %s 
-// RUN: c-index-test -test-file-scan %t.ast %s | FileCheck -check-prefix=scan %s
-// RUN: c-index-test -test-load-tu %t.ast local | FileCheck -check-prefix=load %s
+// RUN: c-index-test -test-file-scan %t.ast %s | FileCheck -check-prefix=CHECK-scan %s
+// RUN: c-index-test -test-load-tu %t.ast local | FileCheck -check-prefix=CHECK-load %s
 
 // This test checks how the @class resolves as a cursor when there is a real definition
 // that follows. <rdar://problem/7383421>