[BitCodeAnalyzer] Add a few missing TYPE_CODES and MODULE_CODE_COMDAT to GetCodeName

[craig.topper]

Summary

Happened to notice some of these printing as UnknownCode while running llvm-bcanalyzer on a bc file I had.

Not sure how we usually test these.

[arsenm]

Maybe follow llvm/test/Bitcode/bcanalyzer-atomics.ll?

[craig.topper]

Add tests

[craig.topper]

Ping

[efriedma]

LGTM

llvm/lib/Bitcode/Reader/BitcodeAnalyzer.cpp

default:
       STRINGIFY_CODE(MODULE_CODE, DATALAYOUT)
       STRINGIFY_CODE(MODULE_CODE, ASM)
       STRINGIFY_CODE(MODULE_CODE, SECTIONNAME)
       STRINGIFY_CODE(MODULE_CODE, DEPLIB) // Deprecated, present in old bitcode
       STRINGIFY_CODE(MODULE_CODE, GLOBALVAR)
       STRINGIFY_CODE(MODULE_CODE, FUNCTION)
       STRINGIFY_CODE(MODULE_CODE, ALIAS)
       STRINGIFY_CODE(MODULE_CODE, GCNAME)
+      STRINGIFY_CODE(MODULE_CODE, COMDAT)
       STRINGIFY_CODE(MODULE_CODE, VSTOFFSET)
       STRINGIFY_CODE(MODULE_CODE, METADATA_VALUES_UNUSED)
       STRINGIFY_CODE(MODULE_CODE, SOURCE_FILENAME)
       STRINGIFY_CODE(MODULE_CODE, HASH)
     }
   case bitc::IDENTIFICATION_BLOCK_ID:
     switch (CodeID) {
     default:
default:
       STRINGIFY_CODE(TYPE_CODE, NUMENTRY)
       STRINGIFY_CODE(TYPE_CODE, VOID)
       STRINGIFY_CODE(TYPE_CODE, FLOAT)
       STRINGIFY_CODE(TYPE_CODE, DOUBLE)
       STRINGIFY_CODE(TYPE_CODE, LABEL)
       STRINGIFY_CODE(TYPE_CODE, OPAQUE)
       STRINGIFY_CODE(TYPE_CODE, INTEGER)
       STRINGIFY_CODE(TYPE_CODE, POINTER)
+      STRINGIFY_CODE(TYPE_CODE, HALF)
       STRINGIFY_CODE(TYPE_CODE, ARRAY)
       STRINGIFY_CODE(TYPE_CODE, VECTOR)
       STRINGIFY_CODE(TYPE_CODE, X86_FP80)
       STRINGIFY_CODE(TYPE_CODE, FP128)
       STRINGIFY_CODE(TYPE_CODE, PPC_FP128)
       STRINGIFY_CODE(TYPE_CODE, METADATA)
+      STRINGIFY_CODE(TYPE_CODE, X86_MMX)
       STRINGIFY_CODE(TYPE_CODE, STRUCT_ANON)
       STRINGIFY_CODE(TYPE_CODE, STRUCT_NAME)
       STRINGIFY_CODE(TYPE_CODE, STRUCT_NAMED)
       STRINGIFY_CODE(TYPE_CODE, FUNCTION)
+      STRINGIFY_CODE(TYPE_CODE, TOKEN)
+      STRINGIFY_CODE(TYPE_CODE, BFLOAT)
     }
 
   case bitc::CONSTANTS_BLOCK_ID:
     switch (CodeID) {
     default:
       return None;
       STRINGIFY_CODE(CST_CODE, SETTYPE)
       STRINGIFY_CODE(CST_CODE, NULL)