[clang] [clang-format] Allow default values for template parameters in lambda (PR #69052)

[Owen Pan via cfe-commits]

================
@@ -2268,6 +2265,12 @@ bool UnwrappedLineParser::tryToParseLambda() {
       parseRequiresClause(RequiresToken);
       break;
     }
+    case tok::equal:
+      if (InTemplateParameterList) {
+        nextToken();
+        break;
+      }
+      return true;
----------------
owenca wrote:

```suggestion
      if (!InTemplateParameterList)
        return true;
      nextToken();
      break;
```

https://github.com/llvm/llvm-project/pull/69052