[Coverage] Specify the Itanium ABI triple for a C++ test

llvm-svn: 347804
diff --git a/clang/test/CoverageMapping/default-method.cpp b/clang/test/CoverageMapping/default-method.cpp
index e097a16..6b54283 100644
--- a/clang/test/CoverageMapping/default-method.cpp
+++ b/clang/test/CoverageMapping/default-method.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c++17 -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name default-method.cpp -w %s | FileCheck %s -implicit-check-not="->"
+// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++17 -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name default-method.cpp -w %s | FileCheck %s -implicit-check-not="->"
 
 namespace PR39822 {
   struct unique_ptr {