Remove the -cxx-abi command-line flag.

This makes the C++ ABI depend entirely on the target: MS ABI for -win32 triples,
Itanium otherwise. It's no longer possible to do weird combinations.

To be able to run a test with a specific ABI without constraining it to a
specific triple, new substitutions are added to lit: %itanium_abi_triple and
%ms_abi_triple can be used to get the current target triple adjusted to the
desired ABI. For example, if the test suite is running with the i686-pc-win32
target, %itanium_abi_triple will expand to i686-pc-mingw32.

Differential Revision: http://llvm-reviews.chandlerc.com/D2545

llvm-svn: 199250
diff --git a/clang/test/SemaCXX/warn-reinterpret-base-class.cpp b/clang/test/SemaCXX/warn-reinterpret-base-class.cpp
index f7d5bc5..0231f19 100644
--- a/clang/test/SemaCXX/warn-reinterpret-base-class.cpp
+++ b/clang/test/SemaCXX/warn-reinterpret-base-class.cpp
@@ -1,8 +1,8 @@
-// RUN: %clang_cc1 -std=c++11 -fsyntax-only -cxx-abi itanium -verify -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s
-// RUN: %clang_cc1 -std=c++11 -fsyntax-only -cxx-abi microsoft -DMSABI -verify -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -triple %itanium_abi_triple -verify -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -triple %ms_abi_triple -DMSABI -verify -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s
 
-// RUN: not %clang_cc1 -std=c++11 -fsyntax-only -cxx-abi itanium -fdiagnostics-parseable-fixits -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s 2>&1 | FileCheck %s
-// RUN: not %clang_cc1 -std=c++11 -fsyntax-only -cxx-abi microsoft -fdiagnostics-parseable-fixits -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -std=c++11 -fsyntax-only -triple %itanium_abi_triple -fdiagnostics-parseable-fixits -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -std=c++11 -fsyntax-only -triple %ms_abi_triple -fdiagnostics-parseable-fixits -Wreinterpret-base-class -Wno-unused-volatile-lvalue %s 2>&1 | FileCheck %s
 
 // PR 13824
 class A {