[clang] [Clang][Driver] Enable offloadlib option for clang-cl (PR #162980)

[via cfe-commits]

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@@ -25,3 +25,6 @@
 // RUN: %clang_cl -### -fsycl -- %s 2>&1 | FileCheck %s --check-prefix=DEFAULT
 
 // DEFAULT: "-sycl-std=2020"
+
+// RUN: %clang_cl -### -fsycl -sycl-std=2017 --no-offloadlib -- %s 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OFFLOADLIB
+// CHECK-NO-OFFLOADLIB-NOT: warning: unknown argument ignored in clang-cl: '--no-offloadlib'
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jinge90 wrote:

Hi, @srividya-sundaram 
clang and clangxx driver supports this option even without this PR, I add corresponding test to cover clang/clangxx driver to align with other tests in clang/test/Driver/sycl.c.
Thanks very much. 

https://github.com/llvm/llvm-project/pull/162980