WebAssembly JS API: throw when a promise can't be created

WebAssembly JS API: throw when a promise can't be created
https://bugs.webkit.org/show_bug.cgi?id=179826
<rdar://problem/35455813>

Reviewed by Mark Lam.

JSTests:

Test WebAssembly.{compile,instantiate} where promise creation
fails because of a stack overflow.

* wasm/js-api/promise-stack-overflow.js: Added.
(const.runNearStackLimit.f.const.t):
(async.testCompile):
(async.testInstantiate):

Source/JavaScriptCore:

Failure *in* a promise causes rejection, but failure to create a
promise (because of stack overflow) isn't really spec'd (as all
stack things JS). This applies to WebAssembly.compile and
WebAssembly.instantiate.

Dan's current proposal says:

    https://littledan.github.io/spec/document/js-api/index.html#stack-overflow

    Whenever a stack overflow occurs in WebAssembly code, the same
    class of exception is thrown as for a stack overflow in
    JavaScript. The particular exception here is
    implementation-defined in both cases.

    Note: ECMAScript doesn’t specify any sort of behavior on stack
    overflow; implementations have been observed to throw RangeError,
    InternalError or Error. Any is valid here.

This is for general stack overflow within WebAssembly, not
specifically for promise creation within JavaScript, but it seems
like a stack overflow in promise creation should follow the same
rule instead of, say, swallowing the overflow and returning
undefined.

* wasm/js/WebAssemblyPrototype.cpp:
(JSC::webAssemblyCompileFunc):
(JSC::webAssemblyInstantiateFunc):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@224985 268f45cc-cd09-0410-ab3c-d52691b4dbfc