Add WasmFrame, backtraces reflect wasm's presence

Add WasmFrame, backtraces reflect wasm's presence

For now WasmFrame doesn't summarize the wasm frames. That'll require adding the
metadata in wasm-compiler similar to DeoptimizationInputData.

Teach the basic backtrace to iterate over stack frames instead of JS frames.

Update the wasm stack test.

`git cl format` touches random lines in files I touch.

R=titzer@chromium.org
TEST=d8 --test --expose-wasm test/mjsunit/mjsunit.js test/mjsunit/wasm/stack.js

Originally landed in: https://codereview.chromium.org/1712003003/
Reverted in: https://codereview.chromium.org/1730673002/

This patch puts the JSFunction on the C++ stack.

Committed: https://crrev.com/3c6a3ca7b01bc2a036196fdc241717f7cb3dc44c
Cr-Commit-Position: refs/heads/master@{#34225}

[JF, 2016-02-23 19:14:32]

https://codereview.chromium.org/1724063002/diff/1/src/isolate.cc
File src/isolate.cc (right):

https://codereview.chromium.org/1724063002/diff/1/src/isolate.cc#newcode432
src/isolate.cc:432: factory()->NewStringFromAsciiChecked("<WASM>"));
This is different from the previous patch. The rest is the same.

[titzer, 2016-02-23 19:15:05]

lgtm

[JF, 2016-02-23 19:16:56]

The CQ bit was checked by jfb@chromium.org

[commit-bot: I haz the power, 2016-02-23 19:17:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1724063002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1724063002/1

[commit-bot: I haz the power, 2016-02-23 19:38:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-23 19:39:32]

Description was changed from

==========
Add WasmFrame, backtraces reflect wasm's presence

For now WasmFrame doesn't summarize the wasm frames. That'll require adding the
metadata in wasm-compiler similar to DeoptimizationInputData.

Teach the basic backtrace to iterate over stack frames instead of JS frames.

Update the wasm stack test.

`git cl format` touches random lines in files I touch.

R=titzer@chromium.org
TEST=d8 --test --expose-wasm test/mjsunit/mjsunit.js test/mjsunit/wasm/stack.js

Originally landed in: https://codereview.chromium.org/1712003003/
Reverted in: https://codereview.chromium.org/1730673002/

This patch puts the JSFunction on the C++ stack.
==========

to

==========
Add WasmFrame, backtraces reflect wasm's presence

For now WasmFrame doesn't summarize the wasm frames. That'll require adding the
metadata in wasm-compiler similar to DeoptimizationInputData.

Teach the basic backtrace to iterate over stack frames instead of JS frames.

Update the wasm stack test.

`git cl format` touches random lines in files I touch.

R=titzer@chromium.org
TEST=d8 --test --expose-wasm test/mjsunit/mjsunit.js test/mjsunit/wasm/stack.js

Originally landed in: https://codereview.chromium.org/1712003003/
Reverted in: https://codereview.chromium.org/1730673002/

This patch puts the JSFunction on the C++ stack.

Committed: https://crrev.com/3c6a3ca7b01bc2a036196fdc241717f7cb3dc44c
Cr-Commit-Position: refs/heads/master@{#34225}
==========

[commit-bot: I haz the power, 2016-02-23 19:39:33]

Patchset 1 (id:??) landed as
https://crrev.com/3c6a3ca7b01bc2a036196fdc241717f7cb3dc44c
Cr-Commit-Position: refs/heads/master@{#34225}