[clang-format] Support additional common functions for text proto formatting

[krasimir]

Summary

This adds a few more common function names expecting a text proto argument.

lib/Format/Format.cpp

GoogleStyle.RawStringFormats = {
           {
               "pb",
               "PB",
               "proto",
               "PROTO",
           },
           /*EnclosingFunctionNames=*/
           {
-              "PARSE_TEXT_PROTO",
               "EqualsProto",
+              "EquivToProto",
+              "PARSE_TEST_PROTO",
+              "PARSE_TEXT_PROTO",
+              "ParseTextOrDie",
           },
           /*CanonicalDelimiter=*/"",
           /*BasedOnStyle=*/"google",
       },
   };
   GoogleStyle.SpacesBeforeTrailingComments = 2;
   GoogleStyle.Standard = FormatStyle::LS_Auto;