[llvm] [llvm-cov] Coverage report HTML UI to jump between uncovered parts of code (PR #95662)

[NAKAMURA Takumi via llvm-commits]

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@@ -487,6 +651,9 @@ Error CoveragePrinterHTML::createIndexFile(
   if (Error E = emitStyleSheet())
     return E;
 
+  if (Error E = emitJavaScript())
+    return E;
+
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chapuni wrote:

It is not executed with `--show-directory-coverage`.

See also `CoveragePrinterHTMLDirectory::createIndexFile()`.

https://github.com/llvm/llvm-project/pull/95662