Fix Clang Tidy warnings (#295)

Fixes some of the clang-tidy warnings
clang-analyzer-deadcode.DeadStores
clang-analyzer-cplusplus.NewDelete
clang-analyzer-core.uninitialized.UndefReturn

closes some:#253

ignored in this pr:
/usr/include/boost/smart_ptr/detail/shared_count.hpp:432:24
/usr/include/boost/smart_ptr/detail/shared_count.hpp:443:24
51 in build/src/parser
gtest ones
src/fdr/teddy_compile.cpp:600:5 refactoring on way
src/fdr/fdr_compile.cpp:209:5 refactoring on way