[coco] Add comment of Locatable (#2796)

* [coco] Add comment of Locatable

This will add comment for Locatable interface

Signed-off-by: SaeHie Park <saehie.park@samsung.com>
* simplify

diff --git a/contrib/coco/core/include/coco/IR/Locatable.h b/contrib/coco/core/include/coco/IR/Locatable.h
index aa73da3..b80a4a3 100644 (file)
--- a/contrib/coco/core/include/coco/IR/Locatable.h
+++ b/contrib/coco/core/include/coco/IR/Locatable.h
@@ -22,6 +22,9 @@
 namespace coco
 {
 
+/**
+ * @brief Return the associated instruction if exists.
+  */
 struct Locatable
 {
   virtual ~Locatable() = default;