Fix compatibility

Author: winner245

libcxx/test/std/containers/sequences/vector.bool/exceptions.pass.cpp

@@ -101,7 +101,7 @@ int main(int, char**) {
   try { // Throw in vector(const vector&, const allocator_type&) from allocator
     throwing_allocator<bool> alloc(false, false);
     AllocVec vec(alloc);
-    vec.emplace_back(true);
+    vec.push_back(true);
     alloc.throw_on_copy_ = true;
     AllocVec vec2(vec, alloc);
   } catch (int) {
@@ -111,7 +111,7 @@ int main(int, char**) {
   try { // Throw in vector(vector&&, const allocator_type&) from allocator
     throwing_allocator<bool> alloc(false, false);
     AllocVec vec(alloc);
-    vec.emplace_back(true);
+    vec.push_back(true);
     alloc.throw_on_copy_ = true;
     AllocVec vec2(std::move(vec), alloc);
   } catch (int) {

libcxx/test/support/exception_test_helpers.h

@@ -6,8 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef EXCEPTION_TEST_HELPER_H
-#define EXCEPTION_TEST_HELPER_H
+#ifndef EXCEPTION_TEST_HELPERS_H
+#define EXCEPTION_TEST_HELPERS_H
 
 #include "count_new.h"
 
@@ -23,6 +23,11 @@ struct throwing_allocator {
       throw 0;
   }
 
+  throwing_allocator(const throwing_allocator& rhs) : throw_on_copy_(rhs.throw_on_copy_) {
+    if (throw_on_copy_)
+      throw 0;
+  }
+
   template <class U>
   throwing_allocator(const throwing_allocator<U>& rhs) : throw_on_copy_(rhs.throw_on_copy_) {
     if (throw_on_copy_)
@@ -79,4 +84,4 @@ inline void check_new_delete_called() {
   assert(globalMemCounter.aligned_new_array_called == globalMemCounter.aligned_delete_array_called);
 }
 
-#endif // EXCEPTION_TEST_HELPER_H
+#endif // EXCEPTION_TEST_HELPERS_H