Closes #1634.

Early errors may result from parsing the source text of a test file, but
they may also result from parsing some other source text as referenced
through the ES2015 module syntax. The latter form of early error is not
necessarily detectable by ECMAScript parsers, however. Because of this,
the label "early" is not sufficiently precise for all Test262 consumers
to correctly interpret all tests.

Update the "phase" name of "early" to "parse" for all those negative
tests that describe errors resulting from parsing of the file's source
text directly. A forthcoming commit will update the remaining tests to
use a "phase" name that is more specific to module resolution.

This pattern makes expectations more explicit by making test files more
literal.

Authored via the following command:

   $ find test -type f -print0 | \
       xargs -0 sed \
         -i 's/^\(\s*\)negative:\s*SyntaxError\s*$/\1negative:\n\1  phase: early\n\1  type: SyntaxError/g'

Adds tests for the proposal as described here:
http://jeffmo.github.io/es-trailing-function-commas/

Fixes #477

- lastIndex in RegExp.prototype[Symbol.split]: tc39/ecma262@08b4756747f9c967058239df627da544412740a6
- Missing number conversion in DataView.prototype.setXXX: tc39/ecma262@4f875fe96dcbd5e6363dd3d5b510cd5109199f5b
- Negative zero byteoffset in TypedArray: tc39/ecma262@2d1ed20db778e8f69f66ba76b351b9322fd38495
- EvalDeclarationInstantiation throws TypeError: tc39/ecma262@2be6968715946a4763f6ca8633e311ab7ce63577
- BindingRestElement allows BindingPattern: tc39/ecma262@d322357e6be95bc4bd3e03f5944a736aac55fa50
- Eval in parameters with computed property keys: tc39/ecma262@04e2e9b7197a33612202e85065e3f8d8385fbcef
- Use strict with non-simple parameters: tc39/ecma262@15b0db41edd0e519e94668bf13765fe458840766
- __proto__ in strict mode: tc39/ecma262@5c1984334d6d42538527bd022e68bfbfee5cb652

These tests are derived from the following files within the Google V8 project:

    test/mjsunit/harmony/rest-params.js