return proper error from debug_TraceTransaction

[ucwong]

No description provided.

[codecov]

Codecov Report

Merging #1384 (207b125) into master (9c18092) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1384      +/-   ##
==========================================
- Coverage   51.69%   51.69%   -0.01%     
==========================================
  Files         462      462              
  Lines       58265    58265              
==========================================
- Hits        30123    30118       -5     
- Misses      25853    25859       +6     
+ Partials     2289     2288       -1     

Impacted Files	Coverage Δ
rpc/server.go	76.27% <0.00%> (-6.78%)	⬇️
p2p/discover/table.go	84.19% <0.00%> (-2.44%)	⬇️
ctxc/sync.go	60.00% <0.00%> (-1.30%)	⬇️
p2p/simulations/http.go	69.56% <0.00%> (-1.09%)	⬇️
trie/trie.go	79.93% <0.00%> (-0.65%)	⬇️
ctxc/downloader/downloader.go	76.97% <0.00%> (-0.32%)	⬇️
p2p/discover/v5_udp.go	81.37% <0.00%> (-0.23%)	⬇️
p2p/server.go	66.35% <0.00%> (ø)
trie/proof.go	75.75% <0.00%> (+0.30%)	⬆️
core/txpool/txpool.go	73.55% <0.00%> (+0.96%)	⬆️
... and 3 more