Adding missing specializations.

Author: ppisl

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/SREModuleBuiltins.java

@@ -263,9 +263,10 @@ Object call(TruffleObject callable, Object[] arguments,
                         @Cached("createExecute()") Node invokeNode) {
             try {
                 // TODO This is a hack. The right solution would be to fix it
-                // in com.oracle.truffle.regex.RegexEngine.RegexEngineMessageResolution.RegexEngineExecuteNode
+                // in
+                // com.oracle.truffle.regex.RegexEngine.RegexEngineMessageResolution.RegexEngineExecuteNode
                 // where is only check whether the argumen is instance of String.
-                // PString should be there unboxed. 
+                // PString should be there unboxed.
                 for (int i = 0; i < arguments.length; i++) {
                     if (arguments[i] instanceof PString) {
                         arguments[i] = ((PString) arguments[i]).getValue();

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/UnicodeDataModuleBuiltins.java

@@ -48,6 +48,7 @@
 import com.oracle.graal.python.builtins.Builtin;
 import com.oracle.graal.python.builtins.CoreFunctions;
 import com.oracle.graal.python.builtins.PythonBuiltins;
+import com.oracle.graal.python.builtins.objects.str.PString;
 import com.oracle.graal.python.nodes.function.PythonBuiltinNode;
 import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
 import com.oracle.truffle.api.dsl.Cached;
@@ -85,5 +86,16 @@ public String normalize(@SuppressWarnings("unused") String form, String unistr,
             }
             return Normalizer.normalize(unistr, cachedNormForm);
         }
+
+        @Specialization(guards = {"form.equals(cachedForm)"}, limit = "4")
+        public String normalize(@SuppressWarnings("unused") String form, PString unistr,
+                        @SuppressWarnings("unused") @Cached("form") String cachedForm,
+                        @Cached("getForm(cachedForm)") Normalizer.Form cachedNormForm) {
+            if (cachedNormForm == null) {
+                throw raise(ValueError, "invalid normalization form");
+            }
+            return Normalizer.normalize(unistr.getValue(), cachedNormForm);
+        }
+
     }
 }