Update testsuite; various lexing/parsing fixes (#482)

* Update testsuite; various lexing/parsing fixes

Lexer changes:

* Switch re2c parser to UTF-8 parser. This can almost be done "for
  free" with a flag, but required a bit of work to allow us to catch
  malformed UTF-8 as well.
* Change the re2c fill value to 0xff, since it's never a valid UTF-8 byte.
* Allow for more reserved tokens (basically any ascii aside from
  parentheses, double-quote, and semi-colon)
* Remove "infinity" from lexer, only "inf" is allowed now.
* Change definition of EOF token, it was implemented incorrectly. The
  correct way to handle it is to only return it from FILL when there is no
  more data to fill.
* \r is a valid escape.

Parser changes:

* Changes to match the spec parser:
  - block signatures use (result <type>) syntax
  - func/global/table/memory can have multiple inline exports
  - inline imports are handled in func definition instead of import
    definition
  - allow for inline modules (i.e. no "(module ...)" s-expr required)
* Remove FuncField. This was previously used for parsing
  params/results/locals, but it's less code to just parse
  right-recursive (i.e. backward) and insert everything at the front.
  This requires reversing the indexes in the BindingHash too.
* Remove the nasty macros `APPEND_FIELD_TO_LIST`,
  `APPEND_ITEM_TO_VECTOR`, `APPEND_INLINE_EXPORT`, and
  `CHECK_IMPORT_ORDERING`. This behavior is all handled by
  `append_module_fields` now.
* All inline imports/exports are handled by returning additional
  ModuleFields in a list. This removes the need for `OptionalExport`,
  `ExportedFunc`, `ExportedGlobal`, `ExportedTable`, and
  `ExportedMemory`.
* Use "_opt" suffix instead of "non_empty_" prefix, e.g.:
  - text_list => text_list_opt, non_empty_text_list => text_list
* The locations changed for some symbols, typically the use the name
  following the LPAR now, e.g. (import
                                ^^^^^^

* Add PPA for re2c 0.16

* add -y to skip confirmation on travis

1 files changed, 0 insertions, 0 deletions

diff --git a/third_party/testsuite b/third_party/testsuite
-Subproject c4ec0044b99feb322fc63708907d0be0a3088ed
+Subproject 434fe2f1cb4c2a545e8b6165b695435e1adfeb2