C++: Add change note.

MathiasVP · MathiasVP · commit 7e93b99ff9ef · 2025-07-31T13:57:19.000+01:00
diff --git a/cpp/ql/lib/change-notes/2025-07-31-ssa.md b/cpp/ql/lib/change-notes/2025-07-31-ssa.md
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+---
+category: feature
+---
+* Exposed various SSA-related classes (`Definition`, `PhiNode`, `ExplicitDefinition`, `DirectExplicitDefinition`, and `IndirectExplicitDefinition`) which were previously only usable inside the internal dataflow directory.

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 +---
 +category: feature
 +---
 +* Exposed various SSA-related classes (`Definition`, `PhiNode`, `ExplicitDefinition`, `DirectExplicitDefinition`, and `IndirectExplicitDefinition`) which were previously only usable inside the internal dataflow directory.