False positive/noise :unused-locals warnings found in cases/testcases/testtest.clj

[jafingerhut]

False positive/noise :unused-locals warnings found in cases/testcases/testtest.clj
also some similar ones in cases/testcases/suspicious.clj

Found by enabling :unused-locals linter in linters_test.clj for namespace testcases.testtest.

The last 2 are good warnings. For the first 3, it would be nicer if Eastwood did not report them. Not sure how difficult detecting those cases are.

{{:linter :unused-locals,
   :msg "let bound symbol 'G__<num>' never used",
   :file "testcases/testtest.clj",
   :line 124,
   :column 16}
  1,
  {:linter :unused-locals,
   :msg "let bound symbol 'expr__<num>' never used",
   :file "testcases/testtest.clj",
   :line 125,
   :column 16}
  1,
  {:linter :unused-locals,
   :msg "let bound symbol 'pred__<num>' never used",
   :file "testcases/testtest.clj",
   :line 125,
   :column 16}
  1,
  {:linter :unused-locals,
   :msg "let bound symbol 'x' never used",
   :file "testcases/testtest.clj",
   :line 128,
   :column 27}
  1,
  {:linter :unused-locals,
   :msg "let bound symbol 'x' never used",
   :file "testcases/testtest.clj",
   :line 129,
   :column 24}
  2}