C++: Add change note.

MathiasVP · MathiasVP · commit 65b1b7f63e85 · 2025-08-03T12:17:37.000+01:00
diff --git a/cpp/ql/lib/change-notes/2025-08-02-gvn.md b/cpp/ql/lib/change-notes/2025-08-02-gvn.md
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+---
+category: minorAnalysis
+---
+* The global value numbering library (`semmle.code.cpp.valuenumbering.GlobalValueNumbering` and `semmle.code.cpp.ir.ValueNumbering`) has been improved so more expressions are assigned the same value number.

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 +---
 +category: minorAnalysis
 +---
 +* The global value numbering library (`semmle.code.cpp.valuenumbering.GlobalValueNumbering` and `semmle.code.cpp.ir.ValueNumbering`) has been improved so more expressions are assigned the same value number.