Get the old table size after converting integer of 'delta' argument.
Converting integer of the argument can execute another javascript code,
and the code can trigger mismatching between table sizes of instance and
table object, which causes redundant memory allocation.

http://webassembly.org/docs/js/#webassemblytableprototypegrow

Bug: chromium:752423
Change-Id: If9a576d20625d0c39342ea5de114e9fc9f230125
Reviewed-on: https://chromium-review.googlesource.com/627248Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47641}

R=clemensh@chromium.org
BUG=chromium:740199

Review-Url: https://codereview.chromium.org/2977543002
Cr-Commit-Position: refs/heads/master@{#46508}

R=rossberg@chromium.org
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2636173002
Cr-Commit-Position: refs/heads/master@{#42426}

R=rossberg@chromium.org
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2630553002
Cr-Original-Original-Commit-Position: refs/heads/master@{#42286}
Committed: https://chromium.googlesource.com/v8/v8/+/fcc6e85ec6b01e5367795f98aff104b1ff23f619
Review-Url: https://codereview.chromium.org/2630553002
Cr-Original-Commit-Position: refs/heads/master@{#42315}
Committed: https://chromium.googlesource.com/v8/v8/+/74a2f9b7d3c3d9a9284ab8d5a9d08618b8194966
Review-Url: https://codereview.chromium.org/2630553002
Cr-Commit-Position: refs/heads/master@{#42350}

Revert of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #6 id:100001 of https://codereview.chromium.org/2630553002/ )

Reason for revert:
Still breaks Win64 clang build.

Original issue's description:
> [wasm] Enforce that function bodies end with the \"end\" opcode.
>
> R=rossberg@chromium.org
> BUG=chromium:575167
>
> Review-Url: https://codereview.chromium.org/2630553002
> Cr-Original-Commit-Position: refs/heads/master@{#42286}
> Committed: https://chromium.googlesource.com/v8/v8/+/fcc6e85ec6b01e5367795f98aff104b1ff23f619
> Review-Url: https://codereview.chromium.org/2630553002
> Cr-Commit-Position: refs/heads/master@{#42315}
> Committed: https://chromium.googlesource.com/v8/v8/+/74a2f9b7d3c3d9a9284ab8d5a9d08618b8194966

TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2636463002
Cr-Commit-Position: refs/heads/master@{#42317}

R=rossberg@chromium.org
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2630553002
Cr-Original-Commit-Position: refs/heads/master@{#42286}
Committed: https://chromium.googlesource.com/v8/v8/+/fcc6e85ec6b01e5367795f98aff104b1ff23f619
Review-Url: https://codereview.chromium.org/2630553002
Cr-Commit-Position: refs/heads/master@{#42315}

Revert of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #1 id:1 of https://codereview.chromium.org/2628203003/ )

Reason for revert:
OK, the failure really does seem to be due to this patch: It triggers Clang to crash

FAILED: obj/test/unittests/unittests/function-body-decoder-unittest.obj
E:\b\build\slave\cache\cipd\goma/gomacc.exe ../../third_party/llvm-build/Release+Asserts/bin/clang-cl.exe /nologo /showIncludes /FC @obj/test/unittests/unittests/function-body-decoder-unittest.obj.rsp /c ../../test/unittests/wasm/function-body-decoder-unittest.cc /Foobj/test/unittests/unittests/function-body-decoder-unittest.obj /Fd"obj/test/unittests/unittests_cc.pdb"
Assertion failed: (NumGaps == 0 || Bias < MaxDefRange) && "large ranges should not have gaps", file E:\b\build\slave\win_upload_clang\build\src\third_party\llvm\lib\MC\MCCodeView.cpp, line 531
Wrote crash dump file "C:\Users\CHROME~2\AppData\Local\Temp\goma_temp.5068\clang-cl.exe-563144.dmp"

Let's leave it out for now.

Original issue's description:
> Reland of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #1 id:1 of https://codereview.chromium.org/2628883006/ )
>
> Reason for revert:
> Try a reland; this might not have been the source of tree-closing.
>
> Original issue's description:
> > Revert of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #3 id:40001 of https://codereview.chromium.org/2630553002/ )
> >
> > Reason for revert:
> > Caused tree to close by failing compilation:
> >
> > https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20clang/builds/4451
> >
> > Original issue's description:
> > > [wasm] Enforce that function bodies end with the \"end\" opcode.
> > >
> > > R=rossberg@chromium.org
> > > BUG=chromium:575167
> > >
> > > Review-Url: https://codereview.chromium.org/2630553002
> > > Cr-Commit-Position: refs/heads/master@{#42286}
> > > Committed: https://chromium.googlesource.com/v8/v8/+/fcc6e85ec6b01e5367795f98aff104b1ff23f619
> >
> > TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
> > # Skipping CQ checks because original CL landed less than 1 days ago.
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=chromium:575167
> >
> > Review-Url: https://codereview.chromium.org/2628883006
> > Cr-Commit-Position: refs/heads/master@{#42287}
> > Committed: https://chromium.googlesource.com/v8/v8/+/1d32a3989bc474745eeb618ebf094634f4efbb36
>
> TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:575167
>
> Review-Url: https://codereview.chromium.org/2628203003
> Cr-Commit-Position: refs/heads/master@{#42296}
> Committed: https://chromium.googlesource.com/v8/v8/+/e539bd8e0eb6afc8e7c98c38584928d6bc799b5b

TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2633583002
Cr-Commit-Position: refs/heads/master@{#42298}

Reland of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #1 id:1 of https://codereview.chromium.org/2628883006/ )

Reason for revert:
Try a reland; this might not have been the source of tree-closing.

Original issue's description:
> Revert of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #3 id:40001 of https://codereview.chromium.org/2630553002/ )
>
> Reason for revert:
> Caused tree to close by failing compilation:
>
> https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20clang/builds/4451
>
> Original issue's description:
> > [wasm] Enforce that function bodies end with the \"end\" opcode.
> >
> > R=rossberg@chromium.org
> > BUG=chromium:575167
> >
> > Review-Url: https://codereview.chromium.org/2630553002
> > Cr-Commit-Position: refs/heads/master@{#42286}
> > Committed: https://chromium.googlesource.com/v8/v8/+/fcc6e85ec6b01e5367795f98aff104b1ff23f619
>
> TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:575167
>
> Review-Url: https://codereview.chromium.org/2628883006
> Cr-Commit-Position: refs/heads/master@{#42287}
> Committed: https://chromium.googlesource.com/v8/v8/+/1d32a3989bc474745eeb618ebf094634f4efbb36

TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2628203003
Cr-Commit-Position: refs/heads/master@{#42296}

Revert of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #3 id:40001 of https://codereview.chromium.org/2630553002/ )

Reason for revert:
Caused tree to close by failing compilation:

https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20clang/builds/4451

Original issue's description:
> [wasm] Enforce that function bodies end with the \"end\" opcode.
>
> R=rossberg@chromium.org
> BUG=chromium:575167
>
> Review-Url: https://codereview.chromium.org/2630553002
> Cr-Commit-Position: refs/heads/master@{#42286}
> Committed: https://chromium.googlesource.com/v8/v8/+/fcc6e85ec6b01e5367795f98aff104b1ff23f619

TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2628883006
Cr-Commit-Position: refs/heads/master@{#42287}

R=rossberg@chromium.org
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2630553002
Cr-Commit-Position: refs/heads/master@{#42286}

R=clemensh@chromium.org
CC=rossberg@chromium.org
BUG=chromium:575167

Review-Url: https://codereview.chromium.org/2591753002
Cr-Commit-Position: refs/heads/master@{#41866}

BUG=
R=ahaas@chromium.or

Review-Url: https://codereview.chromium.org/2502383003
Cr-Commit-Position: refs/heads/master@{#41074}

R=ahaas@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2414053002
Cr-Commit-Position: refs/heads/master@{#40357}

R=ahaas@chromium.org, titzer@chromium.org
BUG=v8:5507

Review-Url: https://codereview.chromium.org/2421453002
Cr-Commit-Position: refs/heads/master@{#40280}

R=ahaas@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2411963003
Cr-Commit-Position: refs/heads/master@{#40273}

The WebAssembly spec requires a HasProperty() check for the maximum
property of the descriptor object which is used to set up a
WebAssembly.Memory object or a WebAssembly.Table object.

The original implementation only approximated the HasProperty() check.
It used Get() to get the value of the maximum property of the descriptor
object and compared the resulting value to {undefined}. However, this
approximation is incorrect if the property exists but its value is
{undefined}.

R=titzer@chromium.org, franzih@chromium.org
BUG=chromium:649461
TEST=mjsunit/wasm/memory

Review-Url: https://codereview.chromium.org/2367673003
Cr-Commit-Position: refs/heads/master@{#39722}

BUG=chromium:649283
R=titzer@chromium.org
TEST=mjsunit/wasm/table

Review-Url: https://codereview.chromium.org/2358923003
Cr-Commit-Position: refs/heads/master@{#39711}

Set up Wasm Table and Memory constructors

This only provides skeletons so far: the constructors work, but the
types are not wired up with the import/export mechanism yet; methods are
still nops.

Also, fix errors generated from Wasm to be proper Error/TypeError
instances instead of just strings.

I took over this CL from rossberg@chromium.org. The original CL is
https://codereview.chromium.org/2342623002

R=titzer@chromium.org, rossberg@chromium.org

Review-Url: https://codereview.chromium.org/2350643003
Cr-Commit-Position: refs/heads/master@{#39588}