[clang] [Preprocessor] Do not expand macros if the input is already preprocessed (PR #137665)

[Aaron Ballman via cfe-commits]

Juan Manuel Martinez =?utf-8?q?Caamaño?= <juamarti at amd.com>,
Juan Manuel Martinez =?utf-8?q?Caamaño?= <juamarti at amd.com>,
Juan Manuel Martinez =?utf-8?q?Caamaño?=,
Juan Manuel Martinez =?utf-8?q?Caamaño?Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/137665 at github.com>


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@@ -48,6 +48,7 @@
 // instantiation for v<int> in one of the two headers, because we will only
 // parse one of the two get() functions.
 
+#ifdef NS
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AaronBallman wrote:

Then I've got a slight preference for keeping the original code since it should just work unless there's a justification for why its better to change the test contents.

https://github.com/llvm/llvm-project/pull/137665