C++: Add Declaration.hasStdName

Author: Robert Marsh

cpp/ql/src/semmle/code/cpp/Declaration.qll

@@ -119,9 +119,17 @@ abstract class Declaration extends Locatable, @declaration {
   /** Holds if this declaration has the given name in the global namespace. */
   predicate hasGlobalName(string name) { this.hasQualifiedName("", "", name) }
 
+
+  /** Holds if this declaration has the given name in the `std` namespace. */
+  predicate hasStdName(string name) {
+    this.hasQualifiedName("std", "", name)
+  }
+
   /** Holds if this declaration has the given name in the global namespace or the `std` namespace. */
   predicate hasGlobalOrStdName(string name) {
-    this.hasQualifiedName("std", "", name)
+    this.hasGlobalName(name)
+    or
+    this.hasStdName(name)
   }
 
   /** Gets a specifier of this declaration. */