Filter out nontrivial substituted expressions in substTickish

compiler/GHC/Core/Opt/Simplify/Iteration.hs

compiler/GHC/Core/Subst.hs

docs/users_guide/debugging.rst

libraries/base/tests/IO/all.T

libraries/base/tests/all.T

testsuite/tests/codeGen/should_run/all.T

testsuite/tests/concurrent/should_run/all.T

testsuite/tests/ghc-api/target-contents/all.T

testsuite/tests/ghci/scripts/all.T

testsuite/tests/numeric/should_run/all.T

testsuite/tests/primops/should_run/all.T

testsuite/tests/programs/jtod_circint/test.T

testsuite/tests/rts/all.T

testsuite/tests/simplCore/T9646/test.T

testsuite/tests/simplCore/should_compile/T23272.hs

testsuite/tests/simplCore/should_compile/T23272.script

testsuite/tests/simplCore/should_compile/all.T

testsuite/tests/th/all.T

testsuite/tests/typecheck/should_compile/all.T

testsuite/tests/typecheck/should_run/all.T