Remove (expected obsolete) staticsErrorMap

[gkaracha]

This PR removes staticsErrorMap from AsteriusModule. Though small, this change eliminates data dependencies in gcSections, and thus simplifies the development of #666.

[gkaracha]

@TerrorJack I can already see errors of the following form:

argv: JSException "RuntimeError: invalid index into function table\n    at wasm-function[2747]:0x91faa\n    at wasm-function[2748]:0x91fd7\n    at Scheduler.tick (file:///home/skull/tweag/a/asterius/test/argv/rts.scheduler.mjs:346:22)\n    at Immediate.<anonymous> (file:///home/skull/tweag/a/asterius/test/argv/rts.scheduler.mjs:381:29)\n    at processImmediate (internal/timers.js:456:21)"

[gkaracha]

I'll check what happens when marshalCmmDecl returns mempty instead.

[gkaracha]

@TerrorJack I can already see errors of the following form:

argv: JSException "RuntimeError: invalid index into function table\n    at wasm-function[2747]:0x91faa\n    at wasm-function[2748]:0x91fd7\n    at Scheduler.tick (file:///home/skull/tweag/a/asterius/test/argv/rts.scheduler.mjs:346:22)\n    at Immediate.<anonymous> (file:///home/skull/tweag/a/asterius/test/argv/rts.scheduler.mjs:381:29)\n    at processImmediate (internal/timers.js:456:21)"

Same thing happens with mempty. This needs more investigation.

[TerrorJack]

@gkaracha Did you perform reboot in your dev environment? Also what's the error message given --verbose-err?

[gkaracha]

@TerrorJack You're right, after purging everything it seems to be working just fine 👍 Let's see what the GH actions have to say.

PS. I did ./utils/reboot but I have to admit that my environment is not 100% reproducible 🙃