patch 8.2.2636: memory leak when compiling inline function

Problem:    Memory leak when compiling inline function.
Solution:   Free the prefetched line.
diff --git a/src/eval.c b/src/eval.c
index aa5f5b8..6cdc10f 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -2179,8 +2179,8 @@
 	    evalarg->eval_tofree = NULL;
 	}
 
-	vim_free(evalarg->eval_tofree_lambda);
-	evalarg->eval_tofree_lambda = NULL;
+	VIM_CLEAR(evalarg->eval_tofree_cmdline);
+	VIM_CLEAR(evalarg->eval_tofree_lambda);
     }
 }