C++: add table relating specifiers and parameters

Author: IdrissRio

cpp/ql/lib/semmle/code/cpp/Parameter.qll

@@ -49,6 +49,11 @@ class Parameter extends LocalScopeVariable, @parameter {
     result = "(unnamed parameter " + this.getIndex().toString() + ")"
   }
 
+  /** Gets a specifier for this parameter. */
+  override Specifier getASpecifier() {
+    paramspecifiers(underlyingElement(this), unresolveElement(result))
+  }
+
   override string getAPrimaryQlClass() { result = "Parameter" }
 
   /**

cpp/ql/lib/semmlecode.cpp.dbscheme

@@ -1005,6 +1005,11 @@ specifiers(
     unique string str: string ref
 );
 
+paramspecifiers(
+    int param_id: @parameter ref,
+    int spec_id: @specifier ref
+);
+
 typespecifiers(
     int type_id: @type ref,
     int spec_id: @specifier ref