Add SyntaxError type.

runtime/builtin_types.go

@@ -135,6 +135,7 @@ var builtinTypes = map[*Type]*builtinTypeInfo{
 	StopIterationType:             {global: true},
 	StrType:                       {init: initStrType, global: true},
 	superType:                     {init: initSuperType, global: true},
+	SyntaxErrorType:               {global: true},
 	SyntaxWarningType:             {global: true},
 	SystemErrorType:               {global: true},
 	SystemExitType:                {global: true, init: initSystemExitType},

runtime/exceptions.go

@@ -65,6 +65,8 @@ var (
 	StandardErrorType = newSimpleType("StandardError", ExceptionType)
 	// StopIterationType corresponds to the Python type 'StopIteration'.
 	StopIterationType = newSimpleType("StopIteration", ExceptionType)
+	// SyntaxErrorType corresponds to the Python type 'SyntaxError'.
+	SyntaxErrorType = newSimpleType("SyntaxError", StandardErrorType)
 	// SyntaxWarningType corresponds to the Python type 'SyntaxWarning'.
 	SyntaxWarningType = newSimpleType("SyntaxWarning", WarningType)
 	// SystemErrorType corresponds to the Python type 'SystemError'.