Initial dead code finding code

tests/config.nims

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+switch("path", "$projectDir/../src")

tests/testmort.nim

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+import strutils
+
+import mort
+
+proc mysnakeToCamel(s: cstring): string {.findDeadCode.} =
+  var i, j: int
+  result = newString(s.len)
+  if s[i] == '_': inc(i)
+  while true:
+    if s[i] == '_' and (s[i + 1] == '\0' or s[i + 1] == '_'):
+      inc(i)
+    elif (s[i] == '_' or s[i] == '-') and s[i + 1].isLowerAscii and not s[i - 1].isUpperAscii:
+      inc(i)
+      result[j] = toUpperAscii(s[i])
+      inc(i)
+      inc(j)
+    else:
+      result[j] = s[i]
+      inc(i)
+      inc(j)
+    if s[i] == '\0':
+      result.setLen(j)
+      break
+  if result[0] == '\0': # this may result, so we emit a dummy name as marker
+    result = "QQQ"
+
+proc main() =
+  discard mySnakeToCamel("diff_is_good")
+  discard mySnakeToCamel("_diff_is_good")
+  printCodeUsage()
+  printDeadLines()
+
+main()