Some fixes due to reported flag changes in stderr output from -Wdeprecations to
-Wwarnings-deprecations (expected).

Other changes were due to incorrectly including deprecations warnings when
-fno-warn-deprecations were set because in RsEnv and RnName it checked for
any of the flags being, regardless of if the warning came from use of
WARNING or DEPRECATED. A new function has been added to DynFlags.hs which
verifies that the "deprecation type" matches the set of enabled warning
flags (deprecationTypeMatchesFlag).

- overloadedrecflds/should_fail/overloadedrecfldsfail11.run  overloadedrecfldsfail11 [stderr mismatch] (normal)
    FIXED: Use of a overloaded record field marked with WARNING should trigger
    -Wwarnings-deprecations instead of -Wdeprecations.

- overloadedrecflds/should_fail/overloadedrecfldsfail12.run  overloadedrecfldsfail12 [stderr mismatch] (normal)
    FIXED: Use of a symbol with WARNING should trigger -Wwarnings-deprecations instead of -Wdeprecations.

- rename/should_compile/rn066.run                            rn066 [stderr mismatch] (normal)
    FIXED: Use of a symbol with WARNING should trigger -Wwarnings-deprecations instead of -Wdeprecations.

- safeHaskell/unsafeLibs/GoodImport03.run                    GoodImport03 [stderr mismatch] (normal)
    FIXED: Check for WARNING/DEPRECATION when adding warnings and match with flags.

- typecheck/should_compile/tc223.run                         tc223 [stderr mismatch] (normal)
    FIXED: Check for WARNING/DEPRECATION when adding warnings and match with flags.