Port f5ab7d38

Port 65f3861e

Original Commit Message:

    In a new test suite: "wasm-api-tests", using a new binary "wasm_api_tests",
    powered by gtest/gmock (like unittests).
    Also fix a bunch of issues that these tests uncovered, mostly to ensure
    that the stack is walkable.

R=jkummerow@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I9ec54193216d1b2024ee9c4f8f6dbda34bbf4586
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1632354Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#61920}