Add support for constants in the new go generator.

mojom/generators/go/translator/values_test.go

Index: mojom/generators/go/translator/values_test.go
diff --git a/mojom/generators/go/translator/values_test.go b/mojom/generators/go/translator/values_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..8ddd13b527af6cc7679ea2f7e7a0c32197e35423
--- /dev/null
+++ b/mojom/generators/go/translator/values_test.go
@@ -0,0 +1,43 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package translator
+
+import (
+	"testing"
+
+	//"mojom/generated/mojom_files"
+	"mojom/generated/mojom_types"
+)
+
+func TestTranslateLiteralValue(t *testing.T) {
+	testCases := []struct {
+		expected     string
+		literalValue mojom_types.LiteralValue
+	}{
+		{"true", &mojom_types.LiteralValueBoolValue{true}},
+		{"false", &mojom_types.LiteralValueBoolValue{false}},
+		{"32.1", &mojom_types.LiteralValueFloatValue{float32(32.1)}},
+		{"64.2", &mojom_types.LiteralValueDoubleValue{float64(64.2)}},
+		{"8", &mojom_types.LiteralValueUint8Value{uint8(8)}},
+		{"16", &mojom_types.LiteralValueUint16Value{uint16(16)}},
+		{"32", &mojom_types.LiteralValueUint32Value{uint32(32)}},
+		{"64", &mojom_types.LiteralValueUint64Value{uint64(64)}},
+		{"8", &mojom_types.LiteralValueInt8Value{int8(8)}},
+		{"16", &mojom_types.LiteralValueInt16Value{int16(16)}},
+		{"32", &mojom_types.LiteralValueInt32Value{int32(32)}},
+		{"64", &mojom_types.LiteralValueInt64Value{int64(64)}},
+		{"-8", &mojom_types.LiteralValueInt8Value{int8(-8)}},
+		{"-16", &mojom_types.LiteralValueInt16Value{int16(-16)}},
+		{"-32", &mojom_types.LiteralValueInt32Value{int32(-32)}},
+		{"-64", &mojom_types.LiteralValueInt64Value{int64(-64)}},
+		{"\"hello world\"", &mojom_types.LiteralValueStringValue{"hello world"}},
+	}
+
+	translator := NewTranslator(nil)
+	for _, testCase := range testCases {
+		value := mojom_types.ValueLiteralValue{testCase.literalValue}
+		checkEq(t, testCase.expected, translator.translateValue(&value))
+	}
+}