Rust: Fix path resolution for raw pointer types

Author: paldepind

rust/ql/lib/codeql/rust/internal/PathResolution.qll

@@ -774,8 +774,11 @@ private TypeItemNode resolveBuiltin(TypeRepr tr) {
   tr instanceof RefTypeRepr and
   result instanceof Builtins::RefType
   or
-  tr instanceof PtrTypeRepr and
-  result instanceof Builtins::PtrType
+  tr.(PtrTypeRepr).isConst() and
+  result instanceof Builtins::PtrConstType
+  or
+  tr.(PtrTypeRepr).isMut() and
+  result instanceof Builtins::PtrMutType
   or
   result.(Builtins::TupleType).getArity() = tr.(TupleTypeRepr).getNumberOfFields()
 }

rust/ql/test/library-tests/type-inference/CONSISTENCY/PathResolutionConsistency.expected

@@ -11,6 +11,3 @@ multipleCallTargets
 | main.rs:2642:13:2642:31 | ...::from(...) |
 | main.rs:2643:13:2643:31 | ...::from(...) |
 | main.rs:2644:13:2644:31 | ...::from(...) |
-multiplePathResolutions
-| main.rs:1818:26:1818:33 | <...> |
-| main.rs:1819:17:1819:26 | <...> |