[clang][Interp][NFC] Replace dyn_cast_or_null with _if_present

... in Descriptor.h

diff --git a/clang/lib/AST/Interp/Descriptor.h b/clang/lib/AST/Interp/Descriptor.h
index dacec6b..b2f5081 100644 (file)
--- a/clang/lib/AST/Interp/Descriptor.h
+++ b/clang/lib/AST/Interp/Descriptor.h
@@ -113,15 +113,15 @@ public:
   const Expr *asExpr() const { return Source.dyn_cast<const Expr *>(); }
 
   const ValueDecl *asValueDecl() const {
-    return dyn_cast_or_null<ValueDecl>(asDecl());
+    return dyn_cast_if_present<ValueDecl>(asDecl());
   }
 
   const FieldDecl *asFieldDecl() const {
-    return dyn_cast_or_null<FieldDecl>(asDecl());
+    return dyn_cast_if_present<FieldDecl>(asDecl());
   }
 
   const RecordDecl *asRecordDecl() const {
-    return dyn_cast_or_null<RecordDecl>(asDecl());
+    return dyn_cast_if_present<RecordDecl>(asDecl());
   }
 
   /// Returns the size of the object without metadata.