Added synthetic tokens for every keyword that makes sense

Author: Juanjo Alvarez

driver/normalizer/parser.go

@@ -23,36 +23,56 @@ var ToNoder = &native.ObjectToNoder{
 		"noop_line":    true, // Comment/Noop (non significative whitespace)
 	},
 	SyntheticTokens: map[string]string{
-		"Print":     "print",
-		"Ellipsis":  "PythonEllipsisOperator",
-		"Add":       "+",
-		"Sub":       "-",
-		"Mult":      "*",
-		"Div":       "/",
-		"FloorDiv":  "//",
-		"Mod":       "%%",
-		"Pow":       "**",
-		"AugAssign": "?=",
-		"BitAnd":    "&",
-		"BitOr":     "|",
-		"BitXor":    "^",
-		"LShift":    "<<",
-		"RShift":    ">>",
-		"Eq":        "==",
-		"NotEq":     "!=",
-		"Not":       "!",
-		"Lt":        "<",
-		"LtE":       "<=",
-		"Gt":        ">",
-		"GtE":       ">=",
-		"Is":        "is",
-		"IsNot":     "not is",
-		"In":        "in",
-		"NotIn":     "not in",
-		"UAdd":      "+",
-		"USub":      "-",
-		"Invert":    "~",
-		"Pass":      "pass",
+		"Add":           "+",
+		"Assert":        "assert",
+		"AugAssign":     "?=",
+		"BitAnd":        "&",
+		"BitOr":         "|",
+		"BitXor":        "^",
+		"Break":         "break",
+		"ClassDef":      "class",
+		"Continue":      "continue",
+		"Delete":        "del",
+		"Div":           "/",
+		"Ellipsis":      "...",
+		"ExceptHandler": "except",
+		"Eq":            "==",
+		"False":         "False",
+		"For":           "for",
+		"FloorDiv":      "//",
+		"Global":        "global",
+		"Gt":            ">",
+		"GtE":           ">=",
+		"If":            "if",
+		"In":            "in",
+		"Invert":        "~",
+		"Is":            "is",
+		"IsNot":         "not is",
+		"Lambda":        "lambda",
+		"LShift":        "<<",
+		"Lt":            "<",
+		"LtE":           "<=",
+		"Mod":           "%%",
+		"Mult":          "*",
+		"None":          "None",
+		"Nonlocal":      "nonlocal",
+		"Not":           "!",
+		"NotEq":         "!=",
+		"NotIn":         "not in",
+		"Pass":          "pass",
+		"Pow":           "**",
+		"Print":         "print",
+		"Raise":         "raise",
+		"Return":        "return",
+		"RShift":        ">>",
+		"Sub":           "-",
+		"True":          "true",
+		"Try":           "try",
+		"UAdd":          "+",
+		"USub":          "-",
+		"While":         "while",
+		"With":          "with",
+		"Yield":         "yield",
 	},
 	PromoteAllPropertyLists: false,
 	PromotedPropertyLists: map[string]map[string]bool{