[clang] [HIP] Move HIP to the new driver by default (PR #123359)

[Joseph Huber via cfe-commits]

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@@ -74,30 +74,6 @@
 // O0-CGO2-SAME: "-O0"
 // O0-CGO2-NOT: "--lto-CGO2"
 
-// ALL-NOT: "{{.*}}opt"
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jhuber6 wrote:

Ideally we can remove it later, mostly was just trying to avoid duplicating all the tests. I guess I could just force this to use the old driver since this functionality is tested in other places for the new driver.

Side note, I think the no-RDC mode is still broken after the changes Yaxunl made so I need to investigate those.

https://github.com/llvm/llvm-project/pull/123359