[clang] [Clang] Fix handling of explicit parameters in `SemaLambda` (PR #168558)

[Corentin Jabot via cfe-commits]

================
@@ -668,6 +668,9 @@ AST Matchers
 
 - ``hasConditionVariableStatement`` now supports ``for`` loop, ``while`` loop
   and ``switch`` statements.
+- Fixed detection of explicit parameter lists in ``LambdaExpr``.
----------------
cor3ntin wrote:

```suggestion
- Fixed detection of explicit parameter lists in ``LambdaExpr``. (#GH168452)
```

https://github.com/llvm/llvm-project/pull/168558