Previously, test262 had only a test that ensured that ToLength (for
example, rather than ToInteger) was used in test'ing a RegExp, not
in calls to exec. Although in the ES5 and ES2015 specs there is only
one code path, in some implementations, ToLength is called in from
separate code paths. This patch makes a new test for exec'ing a
RegExp and ensures that ToLength is called.
- Add missing 'negative: ReferenceError' in S7.9_A5.7_T1
- Remove stale 'negative: ReferenceError' in block-local-closure-get-before-initialization
- Remove all tail-call expressions in test/built-ins/Function
- And update code in test/built-ins/Function to simply use 'f()' instead of 'var r = f(); return r'
Fixes#383
The `negative` frontmatter tag expresses an expectation for the behavior
of the test file as a whole. The `assert.throws` helper function offers
more fine-grained control over expectations because it may be applied to
specific statements and expressions. This makes it preferable in cases
where it may be used (i.e. when the test body does not describe a syntax
error or early error).
Re-implement assertions for errors to use the `assert.throws` helper
function wherever possible.
Test262 maintains most tests for the FunctionPrototype intrinsic within
the `test/built-ins/Function/prototype/` directory. Two tests are
defined within the otherwise-empty `test/built-ins/intrinsics/`
directory; relocate them to the canonical directory for consistency and
discoverability.
The `test/language/class/` directory contains a small subset of
Test262's tests for ES2015 classes. The majority of tests for classes
are organized within `test/language/statements/class/`.
- Move the tests that rely on the ClassDeclaration syntactic form from
`test/language/class/` to `test/language/statements/class/`.
- Move the test that relies on the ClassExpression syntactic form from
`test/language/class/` to `test/language/expressions/class/`.