deps: update v8 to 4.4.63.9

Upgrade the bundled V8 and update code in src/ and lib/ to the new API.

Notable backwards incompatible changes are the removal of the smalloc
module and dropped support for CESU-8 decoding.  CESU-8 support can be
brought back if necessary by doing UTF-8 decoding ourselves.

This commit includes https://codereview.chromium.org/1192973004 to fix
a build error on python 2.6 systems.  The original commit log follows:

    Use optparse in js2c.py for python compatibility

    Without this change, V8 won't build on RHEL/CentOS 6 because the
    distro python is too old to know about the argparse module.

PR-URL: https://github.com/nodejs/io.js/pull/2022
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>

15 files changed, 11 insertions, 451 deletions

diff --git a/test/addons/heap-profiler/binding.cc b/test/addons/heap-profiler/binding.cc
index 846d53a9c6..0830aae1be 100644
--- a/test/addons/heap-profiler/binding.cc
+++ b/test/addons/heap-profiler/binding.cc
@@ -7,7 +7,7 @@ namespace {
 inline void Test(const v8::FunctionCallbackInfo<v8::Value>& args) {
   v8::Isolate* const isolate = args.GetIsolate();
   const v8::HeapSnapshot* const heap_snapshot =
-      isolate->GetHeapProfiler()->TakeHeapSnapshot(v8::String::Empty(isolate));
+      isolate->GetHeapProfiler()->TakeHeapSnapshot();
   struct : public v8::OutputStream {
     WriteResult WriteAsciiChunk(char*, int) override { return kContinue; }
     void EndOfStream() override {}
diff --git a/test/message/error_exit.out b/test/message/error_exit.out
index 11ea76fd72..71690ba3d0 100644
--- a/test/message/error_exit.out
+++ b/test/message/error_exit.out
@@ -2,7 +2,7 @@ Exiting with code=1
 
 assert.js:*
   throw new assert.AssertionError({
-        ^
+  ^
 AssertionError: 1 == 2
     at Object.<anonymous> (*test*message*error_exit.js:*:*)
     at Module._compile (module.js:*:*)
diff --git a/test/message/eval_messages.out b/test/message/eval_messages.out
index be2120ce79..b02da9b280 100644
--- a/test/message/eval_messages.out
+++ b/test/message/eval_messages.out
@@ -13,7 +13,7 @@ SyntaxError: Strict mode code may not include a with statement
 42
 [eval]:1
 throw new Error("hello")
-      ^
+^
 Error: hello
     at [eval]:1:7
     at Object.exports.runInThisContext (vm.js:*)
@@ -24,7 +24,7 @@ Error: hello
     at process._tickCallback (node.js:*:*)
 [eval]:1
 throw new Error("hello")
-      ^
+^
 Error: hello
     at [eval]:1:7
     at Object.exports.runInThisContext (vm.js:*)
diff --git a/test/message/stdin_messages.out b/test/message/stdin_messages.out
index 9dc6451d1c..94a55c79ab 100644
--- a/test/message/stdin_messages.out
+++ b/test/message/stdin_messages.out
@@ -15,7 +15,7 @@ SyntaxError: Strict mode code may not include a with statement
 
 [stdin]:1
 throw new Error("hello")
-      ^
+^
 Error: hello
     at [stdin]:1:*
     at Object.exports.runInThisContext (vm.js:*)
@@ -27,7 +27,7 @@ Error: hello
 
 [stdin]:1
 throw new Error("hello")
-      ^
+^
 Error: hello
     at [stdin]:1:*
     at Object.exports.runInThisContext (vm.js:*)
diff --git a/test/message/throw_undefined.out b/test/message/throw_undefined.out
index 27aedd9ee4..c23dac051f 100644
--- a/test/message/throw_undefined.out
+++ b/test/message/throw_undefined.out
@@ -1,5 +1,5 @@
 
 *test*message*throw_undefined.js:5
 throw undefined;
-      ^
+^
 undefined
diff --git a/test/message/vm_display_runtime_error.out b/test/message/vm_display_runtime_error.out
index 6c3314de0d..f9d8354703 100644
--- a/test/message/vm_display_runtime_error.out
+++ b/test/message/vm_display_runtime_error.out
@@ -2,7 +2,7 @@ beginning
 
 test.vm:1
 throw new Error("boo!")
-      ^
+^
 Error: boo!
     at test.vm:1:7
     at Object.exports.runInThisContext (vm.js:*)
diff --git a/test/message/vm_display_syntax_error.out b/test/message/vm_display_syntax_error.out
index 0869448702..1b124e2378 100644
--- a/test/message/vm_display_syntax_error.out
+++ b/test/message/vm_display_syntax_error.out
@@ -2,7 +2,7 @@ beginning
 
 test.vm:1
 var 5;
-    ^
+^^^
 SyntaxError: Unexpected number
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> (*test*message*vm_display_syntax_error.js:*)
diff --git a/test/message/vm_dont_display_runtime_error.out b/test/message/vm_dont_display_runtime_error.out
index e3aa0e17f1..ae8cf71142 100644
--- a/test/message/vm_dont_display_runtime_error.out
+++ b/test/message/vm_dont_display_runtime_error.out
@@ -2,7 +2,7 @@ beginning
 middle
 test.vm:1
 throw new Error("boo!")
-      ^
+^
 Error: boo!
     at test.vm:1:7
     at Object.exports.runInThisContext (vm.js:*)
diff --git a/test/message/vm_dont_display_syntax_error.out b/test/message/vm_dont_display_syntax_error.out
index f2e4a94952..242bc8c100 100644
--- a/test/message/vm_dont_display_syntax_error.out
+++ b/test/message/vm_dont_display_syntax_error.out
@@ -2,7 +2,7 @@ beginning
 middle
 test.vm:1
 var 5;
-    ^
+^^^
 SyntaxError: Unexpected number
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> (*test*message*vm_dont_display_syntax_error.js:*)
diff --git a/test/parallel/test-buffer.js b/test/parallel/test-buffer.js
index 443da05560..3daa02eac7 100644
--- a/test/parallel/test-buffer.js
+++ b/test/parallel/test-buffer.js
@@ -4,7 +4,6 @@ var assert = require('assert');
 
 var Buffer = require('buffer').Buffer;
 var SlowBuffer = require('buffer').SlowBuffer;
-var smalloc = require('smalloc');
 
 // counter to ensure unique value is always copied
 var cntr = 0;
diff --git a/test/parallel/test-smalloc.js b/test/parallel/test-smalloc.js
deleted file mode 100644
index 68d2c23fa4..0000000000
--- a/test/parallel/test-smalloc.js
+++ /dev/null
@@ -1,331 +0,0 @@
-'use strict';
-var common = require('../common');
-var assert = require('assert');
-var os = require('os');
-
-// first grab js api's
-var smalloc = require('smalloc');
-var alloc = smalloc.alloc;
-var dispose = smalloc.dispose;
-var copyOnto = smalloc.copyOnto;
-var kMaxLength = smalloc.kMaxLength;
-var Types = smalloc.Types;
-// sliceOnto is volatile and cannot be exposed to users.
-var sliceOnto = process.binding('smalloc').sliceOnto;
-
-
-// verify allocation
-
-var b = alloc(5, {});
-assert.ok(typeof b === 'object');
-for (var i = 0; i < 5; i++)
-  assert.ok(b[i] !== undefined);
-
-
-var b = {};
-var c = alloc(5, b);
-assert.equal(b, c);
-assert.deepEqual(b, c);
-
-
-var b = alloc(5, {});
-var c = {};
-c._data = sliceOnto(b, c, 0, 5);
-assert.ok(typeof c._data === 'object');
-assert.equal(b, c._data);
-assert.deepEqual(b, c._data);
-
-
-// verify writes
-
-var b = alloc(5, {});
-for (var i = 0; i < 5; i++)
-  b[i] = i;
-for (var i = 0; i < 5; i++)
-  assert.equal(b[i], i);
-
-
-var b = alloc(1, Types.Uint8);
-b[0] = 256;
-assert.equal(b[0], 0);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Int8);
-b[0] = 128;
-assert.equal(b[0], -128);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Uint16);
-b[0] = 65536;
-assert.equal(b[0], 0);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Int16);
-b[0] = 32768;
-assert.equal(b[0], -32768);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Uint32);
-b[0] = 4294967296;
-assert.equal(b[0], 0);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Int32);
-b[0] = 2147483648;
-assert.equal(b[0], -2147483648);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Float);
-b[0] = 0.1111111111111111;
-assert.equal(b[0], 0.1111111119389534);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Double);
-b[0] = 0.1111111111111111;
-assert.equal(b[0], 0.1111111111111111);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(1, Types.Uint8Clamped);
-b[0] = 300;
-assert.equal(b[0], 255);
-assert.equal(b[1], undefined);
-
-
-var b = alloc(6, {});
-var c0 = {};
-var c1 = {};
-c0._data = sliceOnto(b, c0, 0, 3);
-c1._data = sliceOnto(b, c1, 3, 6);
-for (var i = 0; i < 3; i++) {
-  c0[i] = i;
-  c1[i] = i + 3;
-}
-for (var i = 0; i < 3; i++)
-  assert.equal(b[i], i);
-for (var i = 3; i < 6; i++)
-  assert.equal(b[i], i);
-
-
-var a = alloc(6, {});
-var b = alloc(6, {});
-var c = alloc(12, {});
-for (var i = 0; i < 6; i++) {
-  a[i] = i;
-  b[i] = i * 2;
-}
-copyOnto(a, 0, c, 0, 6);
-copyOnto(b, 0, c, 6, 6);
-for (var i = 0; i < 6; i++) {
-  assert.equal(c[i], i);
-  assert.equal(c[i + 6], i * 2);
-}
-
-
-var b = alloc(1, Types.Double);
-var c = alloc(2, Types.Uint32);
-if (os.endianness() === 'LE') {
-  c[0] = 2576980378;
-  c[1] = 1069128089;
-} else {
-  c[0] = 1069128089;
-  c[1] = 2576980378;
-}
-copyOnto(c, 0, b, 0, 2);
-assert.equal(b[0], 0.1);
-
-var b = alloc(1, Types.Uint16);
-var c = alloc(2, Types.Uint8);
-c[0] = c[1] = 0xff;
-copyOnto(c, 0, b, 0, 2);
-assert.equal(b[0], 0xffff);
-
-var b = alloc(2, Types.Uint8);
-var c = alloc(1, Types.Uint16);
-c[0] = 0xffff;
-copyOnto(c, 0, b, 0, 1);
-assert.equal(b[0], 0xff);
-assert.equal(b[1], 0xff);
-
-
-// verify checking external if has external memory
-
-// check objects
-var b = {};
-assert.ok(!smalloc.hasExternalData(b));
-alloc(1, b);
-assert.ok(smalloc.hasExternalData(b));
-var f = function() { };
-alloc(1, f);
-assert.ok(smalloc.hasExternalData(f));
-
-// and non-objects
-assert.ok(!smalloc.hasExternalData(true));
-assert.ok(!smalloc.hasExternalData(1));
-assert.ok(!smalloc.hasExternalData('string'));
-assert.ok(!smalloc.hasExternalData(null));
-assert.ok(!smalloc.hasExternalData());
-
-
-// verify alloc throws properly
-
-// arrays are not supported
-assert.throws(function() {
-  alloc(0, []);
-}, TypeError);
-
-
-// no allocations larger than kMaxLength
-assert.throws(function() {
-  alloc(kMaxLength + 1);
-}, RangeError);
-
-
-// properly convert to uint32 before checking overflow
-assert.throws(function() {
-  alloc(-1);
-}, RangeError);
-
-
-// no allocating on what's been allocated
-assert.throws(function() {
-  alloc(1, alloc(1));
-}, TypeError);
-
-
-// throw for values passed that are not objects
-assert.throws(function() {
-  alloc(1, 'a');
-}, TypeError);
-assert.throws(function() {
-  alloc(1, true);
-}, TypeError);
-assert.throws(function() {
-  alloc(1, null);
-}, TypeError);
-
-
-// should not throw allocating to most objects
-alloc(1, function() { });
-alloc(1, /abc/);
-alloc(1, new Date());
-
-
-// range check on external array enumeration
-assert.throws(function() {
-  alloc(1, 0);
-}, TypeError);
-assert.throws(function() {
-  alloc(1, 10);
-}, TypeError);
-
-// very copyOnto throws properly
-
-// source must have data
-assert.throws(function() {
-  copyOnto({}, 0, alloc(1), 0, 0);
-}, Error);
-
-
-// dest must have data
-assert.throws(function() {
-  copyOnto(alloc(1), 0, {}, 0, 0);
-}, Error);
-
-
-// copyLength <= sourceLength
-assert.throws(function() {
-  copyOnto(alloc(1), 0, alloc(3), 0, 2);
-}, RangeError);
-
-
-// copyLength <= destLength
-assert.throws(function() {
-  copyOnto(alloc(3), 0, alloc(1), 0, 2);
-}, RangeError);
-
-
-// sourceStart <= sourceLength
-assert.throws(function() {
-  copyOnto(alloc(1), 3, alloc(1), 0, 1);
-}, RangeError);
-
-
-// destStart <= destLength
-assert.throws(function() {
-  copyOnto(alloc(1), 0, alloc(1), 3, 1);
-}, RangeError);
-
-
-// sourceStart + copyLength <= sourceLength
-assert.throws(function() {
-  copyOnto(alloc(3), 1, alloc(3), 0, 3);
-}, RangeError);
-
-
-// destStart + copyLength <= destLength
-assert.throws(function() {
-  copyOnto(alloc(3), 0, alloc(3), 1, 3);
-}, RangeError);
-
-
-// copy_length * array_size <= dest_length
-assert.throws(function() {
-  copyOnto(alloc(2, Types.Double), 0, alloc(2, Types.Uint32), 0, 2);
-}, RangeError);
-
-
-// test disposal
-var b = alloc(5, {});
-dispose(b);
-for (var i = 0; i < 5; i++)
-  assert.equal(b[i], undefined);
-
-
-// verify dispose throws properly
-
-// only allow object to be passed to dispose
-assert.throws(function() {
-  smalloc.dispose(null);
-});
-
-
-// can't dispose a Buffer
-assert.throws(function() {
-  smalloc.dispose(new Buffer());
-});
-
-assert.throws(function() {
-  smalloc.dispose(new Uint8Array(new ArrayBuffer(1)));
-});
-
-assert.throws(function() {
-  smalloc.dispose({});
-});
-
-
-// Types should be immutable
-assert.deepStrictEqual(Object.getOwnPropertyDescriptor(smalloc, 'Types'), {
-  value: smalloc.Types,
-  writable: false,
-  enumerable: true,
-  configurable: false
-});
-
-var types = Object.keys(smalloc.Types);
-var Types = smalloc.Types;
-
-for (var i = 0; i < types.length; i++)
-  assert.deepStrictEqual(Object.getOwnPropertyDescriptor(Types, types[i]), {
-    value: Types[types[i]],
-    writable: false,
-    enumerable: true,
-    configurable: false
-  });
diff --git a/test/parallel/test-string-decoder.js b/test/parallel/test-string-decoder.js
index c540ecfacd..0b22d3dd04 100644
--- a/test/parallel/test-string-decoder.js
+++ b/test/parallel/test-string-decoder.js
@@ -23,9 +23,6 @@ test(
   '\u02e4\u0064\u12e4\u0030\u3045'
 );
 
-// CESU-8
-test('utf-8', new Buffer('EDA0BDEDB18D', 'hex'), '\ud83d\udc4d'); // thumbs up
-
 // UCS-2
 test('ucs2', new Buffer('ababc', 'ucs2'), 'ababc');
 
diff --git a/test/pummel/test-smalloc-alloc-segfault.js b/test/pummel/test-smalloc-alloc-segfault.js
deleted file mode 100644
index d41ccaee09..0000000000
--- a/test/pummel/test-smalloc-alloc-segfault.js
+++ /dev/null
@@ -1,36 +0,0 @@
-'use strict';
-var common = require('../common');
-var assert = require('assert');
-
-var spawn = require('child_process').spawn;
-var alloc = process.binding('smalloc').alloc;
-
-
-// child
-if (process.argv[2] === 'child') {
-
-  // test that many allocations won't cause early ones to free prematurely
-  // note: if memory frees prematurely then reading out the values will cause
-  // it to seg fault
-  var arr = [];
-  for (var i = 0; i < 1e4; i++) {
-    arr.push(alloc({}, 1));
-    alloc({}, 1024);
-    if (i % 10 === 0) gc();
-  }
-  var sum = 0;
-  for (var i = 0; i < 1e4; i++) {
-    sum += arr[i][0];
-    arr[i][0] = sum;
-  }
-
-} else {
-  // test case
-  var child = spawn(process.execPath,
-                ['--expose_gc', __filename, 'child']);
-
-  child.on('exit', function(code, signal) {
-    assert.equal(code, 0, signal);
-    console.log('alloc didn\'t segfault');
-  });
-}
diff --git a/test/pummel/test-smalloc-dispose-segfault.js b/test/pummel/test-smalloc-dispose-segfault.js
deleted file mode 100644
index 9364cca344..0000000000
--- a/test/pummel/test-smalloc-dispose-segfault.js
+++ /dev/null
@@ -1,30 +0,0 @@
-'use strict';
-var common = require('../common');
-var assert = require('assert');
-
-var spawn = require('child_process').spawn;
-var smalloc = process.binding('smalloc');
-var alloc = smalloc.alloc;
-var dispose = smalloc.dispose;
-
-
-// child
-if (process.argv[2] === 'child') {
-
-  // test that disposing an allocation won't cause the MakeWeakCallback to try
-  // and free invalid memory
-  for (var i = 0; i < 1e4; i++) {
-    dispose(alloc({}, 5));
-    if (i % 10 === 0) gc();
-  }
-
-} else {
-  // test case
-  var child = spawn(process.execPath,
-                ['--expose_gc', __filename, 'child']);
-
-  child.on('exit', function(code, signal) {
-    assert.equal(code, 0, signal);
-    console.log('dispose didn\'t segfault');
-  });
-}
diff --git a/test/pummel/test-smalloc-sliceonto-segfault.js b/test/pummel/test-smalloc-sliceonto-segfault.js
deleted file mode 100644
index e9e00979ff..0000000000
--- a/test/pummel/test-smalloc-sliceonto-segfault.js
+++ /dev/null
@@ -1,39 +0,0 @@
-'use strict';
-var common = require('../common');
-var assert = require('assert');
-
-var spawn = require('child_process').spawn;
-var alloc = process.binding('smalloc').alloc;
-var sliceOnto = process.binding('smalloc').sliceOnto;
-
-
-// child
-if (process.argv[2] === 'child') {
-
-  // test that many slices won't cause early ones to free prematurely
-  // note: if this fails then it will cause v8 to seg fault
-  var arr = [];
-  for (var i = 0; i < 1e4; i++) {
-    var a = alloc({}, 256);
-    var b = {};
-    b._data = sliceOnto(a, b, 0, 1);
-    if (i % 2 === 0)
-      arr.push(b);
-    if (i % 10 === 0) gc();
-  }
-  var sum = 0;
-  for (var i = 0; i < 5e3; i++) {
-    sum += arr[i][0];
-    arr[i][0] = sum;
-  }
-
-} else {
-  // test case
-  var child = spawn(process.execPath,
-                ['--expose_gc', __filename, 'child']);
-
-  child.on('exit', function(code, signal) {
-    assert.equal(code, 0, signal);
-    console.log('sliceOnto didn\'t segfault');
-  });
-}