Rust: avoid classes with multiple getAPrimaryQLClass result

Author: aibaars

rust/ql/lib/codeql/rust/elements/internal/VariableImpl.qll

@@ -448,8 +448,7 @@ module Impl {
   private import codeql.rust.elements.internal.generated.Synth
 
   /** A variable access. */
-  abstract class VariableAccess extends PathExprBaseImpl::PathExprBase instanceof VariableAccessCand
-  {
+  class VariableAccess extends PathExprBaseImpl::PathExprBase instanceof VariableAccessCand {
     private string name;
     private Variable v;
 
@@ -462,8 +461,6 @@ module Impl {
     predicate isCapture() { this.getEnclosingCallable() != v.getPat().getEnclosingCallable() }
 
     override string toString() { result = name }
-
-    override string getAPrimaryQlClass() { result = "VariableAccess" }
   }
 
   /** Holds if `e` occurs in the LHS of an assignment or compound assignment. */