move Pattern.quote and Pattern.LITERAL models to Regex.qll

Author: Jami Cogswell

java/ql/lib/semmle/code/java/frameworks/Regex.qll

@@ -7,6 +7,22 @@ class TypeRegexPattern extends Class {
   TypeRegexPattern() { this.hasQualifiedName("java.util.regex", "Pattern") }
 }
 
+/** The `quote` method of the `java.util.regex.Pattern` class. */
+class PatternQuoteMethod extends Method {
+  PatternQuoteMethod() {
+    this.getDeclaringType() instanceof TypeRegexPattern and
+    this.hasName(["quote"])
+  }
+}
+
+/** The `LITERAL` field of the `java.util.regex.Pattern` class. */
+class PatternLiteral extends Field {
+  PatternLiteral() {
+    this.getDeclaringType() instanceof TypeRegexPattern and
+    this.hasName("LITERAL")
+  }
+}
+
 private class RegexModel extends SummaryModelCsv {
   override predicate row(string s) {
     s =

java/ql/lib/semmle/code/java/security/RegexInjection.qll

@@ -92,19 +92,6 @@ private class PatternRegexMethod extends Method {
   }
 }
 
-/** The `quote` method of the `java.util.regex.Pattern` class. */
-private class PatternQuoteMethod extends Method {
-  PatternQuoteMethod() { this.hasName(["quote"]) }
-}
-
-/** The `LITERAL` field of the `java.util.regex.Pattern` class. */
-private class PatternLiteral extends Field {
-  PatternLiteral() {
-    this.getDeclaringType() instanceof TypeRegexPattern and
-    this.hasName("LITERAL")
-  }
-}
-
 /**
  * The methods of the class `org.apache.commons.lang3.RegExUtils` that take
  * a regular expression of type `String` as a parameter.