[clang-format] Parse the Verilog language option in configuration

clang/lib/Format/Format.cpp

static void enumeration(IO &IO, FormatStyle::LanguageKind &Value) {
     IO.enumCase(Value, "Java", FormatStyle::LK_Java);
     IO.enumCase(Value, "JavaScript", FormatStyle::LK_JavaScript);
     IO.enumCase(Value, "ObjC", FormatStyle::LK_ObjC);
     IO.enumCase(Value, "Proto", FormatStyle::LK_Proto);
     IO.enumCase(Value, "TableGen", FormatStyle::LK_TableGen);
     IO.enumCase(Value, "TextProto", FormatStyle::LK_TextProto);
     IO.enumCase(Value, "CSharp", FormatStyle::LK_CSharp);
     IO.enumCase(Value, "Json", FormatStyle::LK_Json);
+    IO.enumCase(Value, "Verilog", FormatStyle::LK_Verilog);
   }
 };
 
 template <> struct ScalarEnumerationTraits<FormatStyle::LanguageStandard> {
   static void enumeration(IO &IO, FormatStyle::LanguageStandard &Value) {
     IO.enumCase(Value, "c++03", FormatStyle::LS_Cpp03);
     IO.enumCase(Value, "C++03", FormatStyle::LS_Cpp03); // Legacy alias
     IO.enumCase(Value, "Cpp03", FormatStyle::LS_Cpp03); // Legacy alias

clang/unittests/Format/ConfigParseTest.cpp

EXPECT_EQ(parseConfiguration("---\n"
                                "---\n"
                                "Language: JavaScript\n"
                                "IndentWidth: 78\n"
                                "...\n",
                                &Style),
             ParseError::Error);
 
   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
+
+  Style.Language = FormatStyle::LK_Verilog;
+  CHECK_PARSE("---\n"
+              "Language: Verilog\n"
+              "IndentWidth: 12\n"
+              "---\n"
+              "Language: Cpp\n"
+              "IndentWidth: 34\n"
+              "...\n",
+              IndentWidth, 12u);
+  CHECK_PARSE("---\n"
+              "IndentWidth: 78\n"
+              "---\n"
+              "Language: Verilog\n"
+              "IndentWidth: 56\n"
+              "...\n",
+              IndentWidth, 56u);
 }
 
 TEST(ConfigParseTest, UsesLanguageForBasedOnStyle) {
   FormatStyle Style = {};
   Style.Language = FormatStyle::LK_JavaScript;
   Style.BreakBeforeTernaryOperators = true;
   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value());
   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);