Handle all user generated code errors in the type checker (#394)

* Move the missing_definition error to the type checker

* Move the parameterised_event and parameterised_state errors to the type checker

* Remove check_state_and_event_types from ast_to_fcode

* Move missing_init_function to the type checker

* Remove the code error last_declaration_must_be_main_contract

* Expand the tests for missing init function

* Remove found_void error

* Move the higher order entrypoint error to type checker

* Move invalid_aens_resolve_type error to type checker

* Add more tests for AENS.resolve

* Add test for AENS.resolve with using

* Move invalid_oracle_type error to type checker

* Move old code errors tests to compilable_contracts

* Remove the file aeso_code_errors.erl

* Add comment about state type

src/aeso_fcode_to_fate.erl

@@ -64,7 +64,9 @@ debug(Tag, Options, Fun) ->
 
 -dialyzer({nowarn_function, [code_error/1]}).
 code_error(Err) ->
-    aeso_errors:throw(aeso_code_errors:format(Err)).
+    Pos = aeso_errors:pos(0, 0),
+    Msg = lists:flatten(io_lib:format("Unknown error: ~p\n", [Err])),
+    aeso_errors:throw(aeso_errors:new(code_error, Pos, Msg)).
 
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