The with statement tests were novel, but the tests for
property accessors throwing errors for undefined & null
were duplicates with S11.2.1_A3_T4/5 respectively.

Add assert.throws

Closes #57.

add "assert.js" to python, website runners too

Initial assert helpers

Whitespace fixes

Presumably since Python is whitespace-sensitive, this is actually quite important?

Closes #110

Sbp_A1_T1 to Sbp_A5_T2, Sbp_12, Sbp_7*: Functions are now valid in blocks, tests syntactically invalid anyway
Sbp_A10_T1 to Sbp_A10_T2: Tests are broken

remove obsolete attributes from frontmatter fixes #80

browser runner: check negative regex

remove spec attribute
remove assertion, section, name

add initial set of tests for Promise

See also: https://github.com/tc39/test262/pull/29

test262.py crashes when --logfile due to reference to absent attribute 'logfile'

add test to repro #114
fix issue #114
factor out PercentFormat function
new fn write; start factoring summary output
fix tests to match
consolidate "Failed Tests" message
add test for successful run
consolidate all_succeeded message
consolidate summary line
consolidate ntests
failing negative tests
squeeze whitespace

add more tests of Promise.all

additional Promise test

add tests of Promise.prototype

add some tests for Promise.race

additional Promise tests

add Promise.reject and Promise.resolve tests

correct test description

rename badly-named files

use current license and minor style cleanup

correct understanding of undefined as thisArgument

incorporate line notes

Is this enough to make a constructor in ES6?

more accurate use of resolved,fulfilled etc.
remove some redundant tests
add new tests

remove "constant array" unclear language

better description

Update S25.4.2.1_A3.2_T1.js

address dangling ()

changes per @anba line notes
 - if GetIterator is abrupt, the Promise.race / Promise.all should reject
 - if Promise.race is called with nonconforming constructor as 'this',
   TypeError should be thrown (cannot reject if exeption is thrown from
   NewPromiseCapability; no promise exists yet...)

correct description of "this" testing in callbacks

fix whitespace, formatting

remove tab
add "next-turn" checking to sequencers

Use `target='_blank'` to open links in new window

load monkeyYaml without assuming it is on path

use imp to import monkeyYaml locally
make monkeyYaml the backup again

ES5.S15: new tests to clarify Array.prototype.concat

additional fixes suggested by @anba

remove spurious flags: [path]

provide fallback parser if YAML not installed

parseTestRecord.py:
- recover from ImportError when YAML not defined
- use monkeyYaml as backup

monkeyYaml.py:
- parser for subset of YAML used in test262 frontmatter

test_monkeyYaml.py:
- unit tests

document `timeout` and clean up

CONTRIBUTING.md
- document `timeout` tag
- reorder tags in frontmatter doc
- minor cleanups
- minor fixes
- add style note
- reformat flags
- remove discussion of obsolete $INCLUDE
- incorporate line notes from @domenic
- integrate additional comments
- add links back, move arg notes down
- Raise outline level by one

README.md
- link to CONTRIBUTING

Test of spec language from 15.4.4.4,
5.b.iii.3.b states 'Call the [[DefineOwnProeprty]] internal method of A'
which means that the result of Array.prototype.concat
should return `true` from `hasOwnProperty` for every property
created by `concat`, up to `length`

Set length to 3.
a[0] is set to 0 on a
a[1] is unset
a[2] is set to 2 via a prototype of a

add assertions for values of b[0], b[1], b[2]
add assertions for b.hasOwnProperty('2')

Check with Array.prototype and Object.prototype, separate tests

fix typo in assertion message

test was correct, but assertion message was incorrect

1. use negative regex (instead of ".") to check iframeError
2. make Test262Error.prototype.toString() always include
   the string Test262Error (no spaces) so it matches /Test262Error/
3. modify check for supportsWindowOnerror - require that
   first argument (message) to onerror() contains the error name
   by checking for /Error:/.

Change (3) above forces IE11 onto the !supportsWindowOnerror path.
Test262 tests are run inside an eval() on IE11, and errors are
caught and explicitly have toString() called.  Without this,
IE11 passes only the `message` property to onerror(), and regexes
that expect to match error name fail.

sth: revert to simple `onerror` checking

gs: refactor function `$DONE`

refactor logic tree
add support for async test failures

ed.js: crude support for error typing

S8.7.1_A2: cache result of delete

`delete` has a side-effect and its
return value depends on this; cache result of
delete so when reporting result, we are always
reporting the result that made us fail, not the
result of a new delete
[pedantic]

ed: explicitly pass cooked error to $DONE

gs: only let $DONE be called once

Remove negative flag from test bed. Replace with specific errors. Other misc. fixes.

pilot directory for replacing flags: [negative] with
negative: errorname

ch07-7.2,7.3: add error names
ch07-rest: insert error names rest of ch07
ch08: add expected error name
ch11: add error name to negative
ch12: put error name in negative

ch13: add error name to negative
only one test, did it manually

ch15: add error name to negative:

ch07: add error name to negative

these tests used flags: \n - negative and so
were not caught by the earlier naive grep for flags: [negative]

--- changes suggested by @anba

bestPractice - remove added NotEarlyError
ch07,ch11 - expect ReferenceError (req'd by ES6)
correct test descriptions to expect ReferenceError only
enforce parsing as block statement by adding `;`
remove needless include of $FAIL.js

effectively, a rebase of all changes onto master

    Merge branch 'negative-addErrorName-work' into negative-addErrorName-bestPractice

    Merge branch 'saved-bestPractice-negative' into negative-addErrorName-work

    Conflicts:
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T2.js
    	test/suite/ch12/12.1/S12.1_A4_T1.js
    	test/suite/ch12/12.5/S12.5_A2.js

    incorporate changes made on PR branch

    re-remove added NotEarlyError

    Merge branch 'negative-addErrorName-work' into negative-addErrorName-bestPractice

    Conflicts:
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T2.js
    	test/suite/ch12/12.1/S12.1_A4_T1.js
    	test/suite/ch12/12.5/S12.5_A2.js

    ch15: correct negative regexes

    ch10: avoid use of not-NotEarlyError regex

    ch14 error regexps

    ch13 error regexps

    ch12: negative error matching

    Merge branch 'console-runner-checkError' into negative-addErrorName-work

    test262.py: check negative tests with regex

    implement checking of negative tests =>

    negative: SyntaxError

    means that /SyntaxError/ must match stderr
    or test is reported as failure

    Fixes #78

    expect real errors

    bestPractice: supply error names to negative

    pilot directory for replacing flags: [negative] with
    negative: errorname

    ch07-7.2,7.3: add error names
    ch07-rest: insert error names rest of ch07
    ch08: add expected error name
    ch11: add error name to negative
    ch12: put error name in negative

    ch13: add error name to negative
    only one test, did it manually

    ch15: add error name to negative:

    ch07: add error name to negative

    these tests used flags: \n - negative and so
    were not caught by the earlier naive grep for flags: [negative]

    --- changes suggested by @anba

    bestPractice - remove added NotEarlyError
    ch07,ch11 - expect ReferenceError (req'd by ES6)
    correct test descriptions to expect ReferenceError only
    enforce parsing as block statement by adding `;`
    remove needless include of $FAIL.js

    Merge branch 'negative-addErrorName-work' into negative-addErrorName-bestPractice

    resolved Conflicts:
    	test/suite/ch07/7.9/S7.9_A5.7_T1.js
    	test/suite/ch11/11.13/11.13.1/S11.13.1_A2.1_T3.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T1.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T10.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T11.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T2.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T3.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T4.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T5.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T6.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T7.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T8.js
    	test/suite/ch11/11.13/11.13.2/S11.13.2_A2.2_T9.js
    	test/suite/ch11/11.3/11.3.1/S11.3.1_A2.1_T3.js
    	test/suite/ch11/11.3/11.3.2/S11.3.2_A2.1_T3.js
    	test/suite/ch11/11.4/11.4.4/S11.4.4_A2.1_T3.js
    	test/suite/ch11/11.4/11.4.5/S11.4.5_A2.1_T3.js
    	test/suite/ch12/12.5/S12.5_A2.js
    	test/suite/ch12/12.6/12.6.3/S12.6.3_A4_T2.js

    negative: second half of @anba notes

    correct test descriptions to expect ReferenceError only
    enforce parse as block statement by adding `;`
    remove needless include of $FAIL.js

    ch12: specify type

    negative: @anba fixes

    bestPractice - remove added NotEarlyError
    ch07,ch11 - expect ReferenceError (req'd by ES6)

    bestPractice: supply error names to negative

    pilot directory for replacing flags: [negative] with
    negative: errorname

    ch07-7.2,7.3: add error names
    ch07-rest: insert error names rest of ch07
    ch08: add expected error name
    ch11: add error name to negative
    ch12: put error name in negative

    ch13: add error name to negative
    only one test, did it manually

    ch15: add error name to negative:

    ch07: add error name to negative

    these tests used flags: \n - negative and so
    were not caught by the earlier naive grep for flags: [negative]

    expect a SyntaxError

    ch07: add error name to negative

    these tests used flags: \n - negative and so
    were not caught by the earlier naive grep for flags: [negative]

    ch15: add error name to negative:

    ch13: add error name to negative

    only one test, did it manually

    ch12: put error name in negative

    ch11: add error name to negative

    ch08: add expected error name
    ch07-rest: insert error names rest of ch07

    ch07-7.2,7.3: add error names

    negative-errorname: pilot

    pilot directory for replacing flags: [negative] with
    negative: errorname

    bestPractice: supply error names to negative

bestPractice: supply error names to negative

pilot directory for replacing flags: [negative] with
negative: errorname

ch07-7.2,7.3: add error names
ch07-rest: insert error names rest of ch07
ch08: add expected error name
ch11: add error name to negative
ch12: put error name in negative

ch13: add error name to negative
only one test, did it manually

ch15: add error name to negative:

ch07: add error name to negative

these tests used flags: \n - negative and so
were not caught by the earlier naive grep for flags: [negative]

bestPractice: supply error names to negative

negative-errorname: pilot

pilot directory for replacing flags: [negative] with
negative: errorname

ch07-7.2,7.3: add error names

ch07-rest: insert error names rest of ch07

ch08: add expected error name

ch11: add error name to negative

ch12: put error name in negative

ch13: add error name to negative

only one test, did it manually

ch15: add error name to negative:

ch07: add error name to negative

these tests used flags: \n - negative and so
were not caught by the earlier naive grep for flags: [negative]

expect a SyntaxError

negative: @anba fixes

bestPractice - remove added NotEarlyError
ch07,ch11 - expect ReferenceError (req'd by ES6)

ch12: specify type

negative: second half of @anba notes

correct test descriptions to expect ReferenceError only
enforce parse as block statement by adding `;`
remove needless include of $FAIL.js

expect real errors

ch12: negative error matching

ch13 error regexps

ch14 error regexps

add "description" header back

remove now-unused includes

remove needless include

Correct test assertion (Fixes issue#61)