[clang-tools-extra] [clang-doc] Add --asset option to clang-doc (PR #94717)

[Paul Kirth via cfe-commits]

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@@ -0,0 +1,2 @@
+// RUN: clang-doc --format=html --executor=standalone %s -output=%t/docs | FileCheck %s
+// CHECK: Using default asset: {{.*}}%{pathsep}share%{pathsep}clang
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ilovepi wrote:

The regular expression doesn't look right to me. I assume that `pathsep` will match eagerly after the `.*`. could be something else, though. I'm guessing you probably still need the `..`.

An alternate way to write the check is like this
```suggestion
// CHECK: Using default asset: 
// CHECK-SAME: %{pathsep}share%{pathsep}clang
```


https://github.com/llvm/llvm-project/pull/94717