[clang] [Clang][Parser] Have the depth of the abbreviated generic lambdas inside a requires clause differ from the surrounding generic lambda (PR #80656)

[via cfe-commits]

================
@@ -1385,6 +1385,16 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer(
       Diag(RAngleLoc,
            diag::err_lambda_template_parameter_list_empty);
     } else {
+      // We increase the template depth before recursing into a 
requires-clause.
+      //
+      // This depth is used for setting up a LambdaScopeInfo (at
+      // Sema::RecordParsingTemplateParameterDepth), which participates in the
+      // invented template parameters later at InventTemplateParameter.
----------------
cor3ntin wrote:

```suggestion
      // Sema::RecordParsingTemplateParameterDepth), which is used later when 
inventing 
      // template parameters in InventTemplateParameter.
```

https://github.com/llvm/llvm-project/pull/80656
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