Rust: Include as expression in CFG nodes

Author: paldepind

rust/ql/.generated.list

@@ -13,7 +13,7 @@ private import codeql.rust.elements.internal.generated.CastExpr
 module Impl {
   // the following QLdoc is generated: if you need to edit it, do it in the schema file
   /**
-   * A cast expression. For example:
+   * A type cast expression. For example:
    * ```rust
    * value as u64;
    * ```

rust/ql/lib/codeql/rust/controlflow/internal/generated/CfgNodes.qll

@@ -448,10 +448,10 @@ class _:
     """
 
 
-@annotate(CastExpr)
+@annotate(CastExpr, cfg = True)
 class _:
     """
-    A cast expression. For example:
+    A type cast expression. For example:
     ```rust
     value as u64;
     ```