account for more patterns in IntegerLiteral.getValue

Author: alexrford

ql/src/codeql_ruby/ast/Literal.qll

@@ -51,15 +51,23 @@ class IntegerLiteral extends NumericLiteral, TIntegerLiteral {
     exists(string s, string values, string str |
       s = this.getValueText() and
       (
-        s.matches("0b%") and values = "01" and str = s.suffix(2)
+        (s.matches("0b%") or s.matches("0B%")) and
+        values = "01" and
+        str = s.suffix(2)
         or
-        s.matches("0x%") and values = "0123456789abcdef" and str = s.suffix(2)
+        (s.matches("0x%") or s.matches("0X%")) and
+        values = "0123456789abcdef" and
+        str = s.suffix(2)
         or
         s.charAt(0) = "0" and
-        not s.charAt(1) = ["b", "x"] and
+        not s.charAt(1) = ["b", "B", "x", "X"] and
         values = "01234567" and
         str = s.suffix(1)
         or
+        (s.matches("0o%") or s.matches("0O%")) and
+        values = "01234567" and
+        str = s.suffix(2)
+        or
         s.charAt(0) != "0" and values = "0123456789" and str = s
       )
     |