C++: Factor out file encoding predicate

Author: jcreedcmu

cpp/ql/src/definitions.qll

@@ -214,3 +214,6 @@ Top definitionOf(Top e, string kind) {
   // later on.
   strictcount(result.getLocation()) < 10
 }
+
+cached
+File getEncodedFile(string name) { result.getAbsolutePath().replaceAll(":", "_") = name }

cpp/ql/src/localDefinitions.ql

@@ -11,9 +11,6 @@ import definitions
 
 external string selectedSourceFile();
 
-cached
-File getEncodedFile(string name) { result.getAbsolutePath().replaceAll(":", "_") = name }
-
 from Top e, Top def, string kind
 where def = definitionOf(e, kind) and e.getFile() = getEncodedFile(selectedSourceFile())
 select e, def, kind

cpp/ql/src/localReferences.ql

@@ -11,9 +11,6 @@ import definitions
 
 external string selectedSourceFile();
 
-cached
-File getEncodedFile(string name) { result.getAbsolutePath().replaceAll(":", "_") = name }
-
 from Top e, Top def, string kind
 where def = definitionOf(e, kind) and def.getFile() = getEncodedFile(selectedSourceFile())
 select e, def, kind