Rust: Add additional barriers to queries

Author: paldepind

rust/ql/lib/codeql/rust/security/CleartextLoggingExtensions.qll

@@ -42,4 +42,9 @@ module CleartextLogging {
   private class ModelsAsDataSink extends Sink {
     ModelsAsDataSink() { sinkNode(this, "log-injection") }
   }
+
+  private class BooleanTypeBarrier extends Barrier instanceof Barriers::BooleanTypeBarrier { }
+
+  private class FieldlessEnumTypeBarrier extends Barrier instanceof Barriers::FieldlessEnumTypeBarrier
+  { }
 }

rust/ql/lib/codeql/rust/security/LogInjectionExtensions.qll

@@ -51,4 +51,7 @@ module LogInjection {
   private class NumericTypeBarrier extends Barrier instanceof Barriers::NumericTypeBarrier { }
 
   private class BooleanTypeBarrier extends Barrier instanceof Barriers::BooleanTypeBarrier { }
+
+  private class FieldlessEnumTypeBarrier extends Barrier instanceof Barriers::FieldlessEnumTypeBarrier
+  { }
 }

rust/ql/lib/codeql/rust/security/SqlInjectionExtensions.qll

@@ -66,4 +66,7 @@ module SqlInjection {
   private class NumericTypeBarrier extends Barrier instanceof Barriers::NumericTypeBarrier { }
 
   private class BooleanTypeBarrier extends Barrier instanceof Barriers::BooleanTypeBarrier { }
+
+  private class FieldlessEnumTypeBarrier extends Barrier instanceof Barriers::FieldlessEnumTypeBarrier
+  { }
 }