Fix: pass global object as receiver when calling WASM->JS.

R=bradnelson@chromium.org, ahaas@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1581393003

Cr-Commit-Position: refs/heads/master@{#33286}

Revert of [wasm] Add tests for JS wrappers to test-run-wasm. (patchset #1 id:1 of https://codereview.chromium.org/1581643004/ )

Reason for revert:
New test failed on nosnap builder (https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug/builds/4738):

Test: cctest/test-run-wasm-js/Run_CallJS_Add_jswrapped

Stderr:
abort: Sloppy function expects JSReceiver as receiver.

#
# Fatal error in ../../src/objects-inl.h, line 3221
# Check failed: !v8::internal::FLAG_enable_slow_asserts || (object->IsJSFunction()).
#

Original issue's description:
> [wasm] Add tests for JS wrappers to test-run-wasm.
>
> R=bradnelson@chromium.org, ahaas@chromium.org
> BUG=
>
> Committed: https://crrev.com/c52f5ced4e600a57c02301f2936b80f086613985
> Cr-Commit-Position: refs/heads/master@{#33274}

TBR=ahaas@chromium.org,bradnelson@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1587763002

Cr-Commit-Position: refs/heads/master@{#33275}

R=bradnelson@chromium.org, ahaas@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1581643004

Cr-Commit-Position: refs/heads/master@{#33274}

As discussed in person, this adds the code from v8-native-prototype into
V8 proper, guarded by GYP flags that do not build the code by default.
Passing wasm=on to 'make' or setting v8_wasm as a GYP flag activates
building of this code.

An additional header file is added to and exported from the compiler
directory, src/compiler/wasm-compiler.h. This exposes a limited interface
with opaque Node and Graph types to the decoder to build TF graphs, as
well as functions to compile WASM graphs.

The mjsunit tests added are blacklisted because they fail without the
WASM object exposed to JS, which is also disabled by the build config
option.

This corresponds closely to https://github.com/WebAssembly/v8-native-prototype/commit/5981e06ebc9b1e578831d03100f17ebb77970ee0, with some formatting fixes and moving some files into src/compiler.

R=mstarzinger@chromium.org, bradnelson@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1504713014

Cr-Commit-Position: refs/heads/master@{#32794}