* wasm testsuite: ignore hidden files in test dir
and report a rejected file. it was picking up vim .swp files
* wasmtests: correct wat syntax in icall.wat
This renames WasmRuntime to ModuleEnvironment, and makes several changes
to allow for more flexible compilation.
ModuleEnvironment no longer derives from FuncEnvironment, and no longer
has the `begin_translation` and `next_translation` functions, so that
independent `FuncEnvironment` instances can operate within the same
module.
Also, this obviates the rest of TranslationResult, as it moves processing
of function bodies into the environment. The DummyEnvironment implementation
gives an example of decoding the function bodies as they are parsed, however
other implementation strategies are now possible.
Add a settings::FlagsOrIsa struct which represents a flags reference and
optionally the ISA it belongs to. Use this for passing flags/isa
information to the verifier.
The verify_function() and verify_context() functions are now generic so
they accept either a &Flags or a &TargetISa argument.
Fix the return_at_end verifier tests which no longer require an ISA
specified. The signle "set return_at_end" flag setting now makes it to
the verifier even when no ISA is present to carry it.
This allows the environment to control the signatures used for direct
function calls. The signature and calling convention may depend on
whether the function is imported or local.
Also add WasmRuntime::declare_func_{import,type} to notify the runtime
about imported and local functions. This is necessary so the runtime
knows what function indexes are referring to .
Since imported and local functions are now declared to the runtime, it
is no longer necessary to return hashes mapping between WebAssembly
indexes and Cretonne entities.
Also stop return null entries for the imported functions in the
TranslationResult. Just return a vector of local functions.
