jshint / jshint / 2625

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Pull #3123

travis-ci

[[FIX]] Account for hoisting of importing bindings

Bindings created via ES2015 `import` declarations are "hoisted"
during module instantiation. This enables reference prior to
declaration, though JSHint previously reported an error for such cases.

Remove the restriction by introducing a new binding type, "import", that
is interpreted as hoisted and (unlike the existing "function" type)
immutable.

Extend the enforcement of the "latedef" linting option (which previously
only concerned function declarations) to warn about imported bindings
referenced prior to declaration. Although this a new warning, it is
backwards-compatible because it only occurs in situations that were
previously reported as errors.

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