[test] Fix unused FileCheck prefixes in compiler-rt/test

GitOrigin-RevId: 327196d688585ecc6a4aa7dc1323adb7fe203c55
diff --git a/test/profile/instrprof-value-prof-2.c b/test/profile/instrprof-value-prof-2.c
index a5939fe..88a2de0 100644
--- a/test/profile/instrprof-value-prof-2.c
+++ b/test/profile/instrprof-value-prof-2.c
@@ -72,6 +72,7 @@
   }
 }
 
+// CHECK:         Counters:
 // CHECK-1-LABEL:   caller_with_value_site_never_called2:
 // CHECK-1-NEXT:    Hash: 0x0000000000000000
 // CHECK-1-NEXT:    Counters:
diff --git a/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-constants.cpp b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-constants.cpp
index 2c3c156..971553c 100644
--- a/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-constants.cpp
+++ b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-constants.cpp
@@ -16,6 +16,7 @@
   base = (char *)0;
   result = base + 0;
   // CHECK-C: {{.*}}.cpp:[[@LINE-1]]:17: runtime error: applying zero offset to null pointer
+  // CHECK-CPP-NOT: runtime error:
 
   base = (char *)0;
   result = base + 1;
diff --git a/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-summary.cpp b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-summary.cpp
index 1f81974..2fca126 100644
--- a/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-summary.cpp
+++ b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-summary.cpp
@@ -17,6 +17,8 @@
   result = base + 0;
   // CHECK-NOTYPE-C: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
   // CHECK-TYPE-C: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-offset {{.*}}summary.cpp:[[@LINE-2]]:17
+  // CHECK-NOTYPE-CPP-NOT: SUMMARY:
+  // CHECK-TYPE-CPP-NOT: SUMMARY:
 
   base = (char *)0;
   result = base + 1;