[clang] Revert "[dataflow][nfc] Fix u8 string usage with c++20" (PR #84301)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (martinboehme)

<details>
<summary>Changes</summary>

Reverts llvm/llvm-project#<!-- -->84291

The patch broke Windows builds.

---
Full diff: https://github.com/llvm/llvm-project/pull/84301.diff


1 Files Affected:

- (modified) clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp (+1-1) 


``````````diff
diff --git a/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp b/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp
index d9f40d28859f5e..ff4e18de2c70f1 100644
--- a/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp
+++ b/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp
@@ -500,7 +500,7 @@ class HTMLLogger : public Logger {
     for (unsigned I = 0; I < CFG.getNumBlockIDs(); ++I) {
       std::string Name = blockID(I);
       // Rightwards arrow, vertical line
-      char ConvergenceMarker[] = "\\n\u2192\u007c";
+      char ConvergenceMarker[] = u8"\\n\u2192\u007c";
       if (BlockConverged[I])
         Name += ConvergenceMarker;
       GraphS << "  " << blockID(I) << " [id=" << blockID(I) << " label=\""

``````````

</details>


https://github.com/llvm/llvm-project/pull/84301