Use type switch

[cristaloleg]

Found by go-critic typeSwitchVar checker

Log

modules/base/tool.go:444:2� typeSwitchVar� case 0 can benefit from type switch with assignment
modules/base/tool.go:444:2� typeSwitchVar� case 1 can benefit from type switch with assignment
modules/base/tool.go:444:2� typeSwitchVar� case 2 can benefit from type switch with assignment
modules/base/tool.go:444:2� typeSwitchVar� case 3 can benefit from type switch with assignment
modules/base/tool.go:444:2� typeSwitchVar� case 4 can benefit from type switch with assignment
modules/base/tool.go:444:2� typeSwitchVar� case 5 can benefit from type switch with assignment
modules/base/tool.go:444:2� typeSwitchVar� case 6 can benefit from type switch with assignment
modules/base/tool.go:463:2� typeSwitchVar� case 0 can benefit from type switch with assignment
modules/base/tool.go:463:2� typeSwitchVar� case 1 can benefit from type switch with assignment
modules/base/tool.go:463:2� typeSwitchVar� case 2 can benefit from type switch with assignment
modules/base/tool.go:463:2� typeSwitchVar� case 3 can benefit from type switch with assignment
modules/base/tool.go:463:2� typeSwitchVar� case 4 can benefit from type switch with assignment
modules/base/tool.go:463:2� typeSwitchVar� case 5 can benefit from type switch with assignment
modules/base/tool.go:463:2� typeSwitchVar� case 6 can benefit from type switch with assignment
modules/base/tool_test.go:302:3� typeSwitchVar� case 0 can benefit from type switch with assignment
modules/base/tool_test.go:302:3� typeSwitchVar� case 1 can benefit from type switch with assignment
modules/base/tool_test.go:302:3� typeSwitchVar� case 2 can benefit from type switch with assignment
modules/base/tool_test.go:302:3� typeSwitchVar� case 3 can benefit from type switch with assignment
modules/base/tool_test.go:302:3� typeSwitchVar� case 4 can benefit from type switch with assignment
modules/base/tool_test.go:302:3� typeSwitchVar� case 5 can benefit from type switch with assignment
modules/base/tool_test.go:302:3� typeSwitchVar� case 6 can benefit from type switch with assignment

[codecov-io]

Codecov Report

Merging #5122 into master will decrease coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master   #5122      +/-   ##
=========================================
- Coverage    37.4%   37.4%   -0.01%     
=========================================
  Files         307     307              
  Lines       45545   45545              
=========================================
- Hits        17036   17035       -1     
+ Misses      26054   26053       -1     
- Partials     2455    2457       +2

Impacted Files	Coverage Δ
modules/base/tool.go	74.52% <100%> (ø)	⬆️
models/repo_indexer.go	50.84% <0%> (-1.28%)	⬇️
models/repo_list.go	63.37% <0%> (+1.16%)	⬆️

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