[interop][SwiftToCxx] NFC, add a test that operates on generic Array in C++17 mode

Author: hyp

test/Interop/SwiftToCxx/stdlib/array/array-execution-cxx17.cpp

@@ -0,0 +1,11 @@
+// RUN: %empty-directory(%t)
+// RUN: split-file %S/array-execution.cpp %t
+
+// RUN: %target-swift-frontend -typecheck %t/use-array.swift -typecheck -module-name UseArray -enable-experimental-cxx-interop -emit-clang-header-path %t/UseArray.h
+
+// RUN: %target-interop-build-clangxx -fno-exceptions -std=gnu++17 -c %t/array-execution.cpp -I %t -o %t/swift-stdlib-execution.o
+// RUN: %target-build-swift %t/use-array.swift -o %t/swift-stdlib-execution -Xlinker %t/swift-stdlib-execution.o -module-name UseArray -Xfrontend -entry-point-function-name -Xfrontend swiftMain
+// RUN: %target-codesign %t/swift-stdlib-execution
+// RUN: %target-run %t/swift-stdlib-execution | %FileCheck %S/array-execution.cpp
+
+// REQUIRES: executable_test