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Simon Marlow authored
New flags for individual syntax extensions: -fth enables template haskell -fimplicit-params enables implicit parameters These extensions are still implied by -fglasgow-exts, but they can now be switched off individually with -fno-th and -fno-implicit-params respectively. Also, -fno-ffi now works as expected. I cleaned up the interface to the lexer a bit while I was here.
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