Add a case for Rust in LLDB's PDB reader

[arlosi]

Summary

D115300 added Rust as a new PDB language type.

This change allows LLDB to recognize the new language type.

[rnk]

lgtm

[arlosi]

Thanks for the review rnk. Could someone complete this for me? I do not have commit access.

lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp

 static lldb::LanguageType TranslateLanguage(PDB_Lang lang) {
   switch (lang) {
   case PDB_Lang::Cpp:
     return lldb::LanguageType::eLanguageTypeC_plus_plus;
   case PDB_Lang::C:
     return lldb::LanguageType::eLanguageTypeC;
   case PDB_Lang::Swift:
     return lldb::LanguageType::eLanguageTypeSwift;
+  case PDB_Lang::Rust:
+    return lldb::LanguageType::eLanguageTypeRust;
   default:
     return lldb::LanguageType::eLanguageTypeUnknown;
   }
 }
 
 static std::unique_ptr<PDBFile>
 loadMatchingPDBFile(std::string exe_path, llvm::BumpPtrAllocator &allocator) {
   // Try to find a matching PDB for an EXE.

lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp

 lldb::LanguageType TranslateLanguage(PDB_Lang lang) {
   switch (lang) {
   case PDB_Lang::Cpp:
     return lldb::LanguageType::eLanguageTypeC_plus_plus;
   case PDB_Lang::C:
     return lldb::LanguageType::eLanguageTypeC;
   case PDB_Lang::Swift:
     return lldb::LanguageType::eLanguageTypeSwift;
+  case PDB_Lang::Rust:
+    return lldb::LanguageType::eLanguageTypeRust;
   default:
     return lldb::LanguageType::eLanguageTypeUnknown;
   }
 }
 
 bool ShouldAddLine(uint32_t requested_line, uint32_t actual_line,
                    uint32_t addr_length) {
   return ((requested_line == 0 || actual_line == requested_line) &&