Update dependency buble to ^0.20.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
buble	^0.16.0 → ^0.20.0

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Release Notes

bublejs/buble (buble)

v0.20.0

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• This is the last Buble version to work on Node v4 & v6. Going forward, support for old Node versions that reached End-of-Life will not be actively maintained. #​250
• Fix recognition of catch-declared variables (#​237)
• Prevent labels from being renamed due to let/const transpilation. (#​236)
• Fix scoping of variables declared in for loops. (#​233)
• Fix an error when transpiling for (a[0] in b). (#​232)
• Fix an error when transpiling for with an empty init. (#​226)
• Fix let/const transpilation when combined with shorthand properties. (#​229)
• Fix JSX not respecting advanced white space characters. (#​218)
• Fix name collision when transpiling A = class extends A {}. (#​209)
• Fix os-homedir dependency warnings on install. (#​207)
• Upgrade dependencies to their latest patch versions, fixing security audit warnings. (#​250)

v0.19.8

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• Allow shebang (#​191)
• Fix tagged template literal in certain cases (#​190)
• Fix removing of trailing commas in certain cases (#​194)
• Make JSX Fragment configurable (#​198)
• Fix transpiling string-keyed properties with whitespaces before colons (#​200)

v0.19.7

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• Throw error on dynamic import expression if transform is not disabled
• Throw error on async and await if transform is not disabled
• Allow await outside of functions
• Don't bundle acorn dependencies (#​165)
• Inline spread elements where possible (#​179)
• Correctly handle operator precedence for array spread (#​177)
• Correctly pass-through async arrow functions and methods (#​109, #​146)
• Move repository to https://github.com/bublejs/buble
• Exclude non-string keys from rest properties (#​149)

v0.19.6

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• Fix class expressions with heritage in arrow functions (#​150)
• Support objectAssign: true in API as a short-hand for objectAssign: "Object.assign"
• Bundle all acorn dependencies (for now), but no others (#​159)

v0.19.5

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• Transpile U+2028 and U+2029 according to stage 4 proposal json-superset
• Add /*@​__PURE__*/ annotations to transpiled classes
• Update support data
• Allow disabling spread properties transpiling
• Fix specific edge case with spread and computed properties (#​139)
• Allow global return statements
• Don't create unnecessary this aliases with loops (#​120)
• Don't allow getters and setters if IE8 is transpile target (#​20)

v0.19.4

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• Fix transpiling destructuring assignments in brace-less if statement's bodies (#​152)
• Fix transpiling const and let after brace-less if statements (#​132)
• Transpile binary and octal number literals if base prefix is upper-case (#​74)
• Mark classes as supported in Chrome 48
• Mark destructuring of arrow function arguments as not supported in Firefox < 52

v0.19.3

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• Make sure browser builds are actually valid ES5 (except for the modules build)

v0.19.2

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• Correctly specify browser field in package.json (#​107)
• Fix a compile error about using super outside of class methods
• Fix transpiling rest properties

v0.19.1

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• Fix transpiling let and const if arrow functions are not transpiled (i. e. node: 4)

v0.19.0

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Enhancements

• Add support information for new environments
• Add (pass-thru) support for async generators and for-async-of
• Add support for dynamic import (#​102)
• Add support for JSX fragments (#​62)
• Add unpkg build and transpile browser build for older environments (#​93)
• Reuse tagged template quasis (#​67)
• Transpile trailing commas in new expressions (#​63)
• Add support for destructuring in for-in and for-of loop heads
• Add support for destructuring in catch clause params
• Add support for rest properties in assignments

Fixes

• Don't remove commas in comments after the last argument (#​89)
• Support transformations involving aliasing of variables in block scopes (#​60)
• Evaluate expression only once with inline default pattern elements
• Fix nested object and array patterns, rest properties and default values in for loop heads
• Only put own properties in rest properties
• Improve declaration of helper variables
• Allow modification of mutable variables that shadow a const before declaration (#​59)
• Correctly detect modification of immutable variables through destructuring assignments
• In object methods, support destructuring declarations initialized with a variable having the same name as the method (#​86)
• Fix properties with string literal keys after computed properties (#​91)
• Fix methods after computed properties (#​101)
• Fix short-hand generator methods
• Fix template literals in array after spread element (#​105)
• Fix arrow functions in array after spread element (#​100)
• Fix arrow functions in new expression after spread element (#​100)
• Restore decoding HTML entities in JSX (#​104)
• Correct various entries in support matrix

v0.18.0

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• Allow anonymous functions and classes as default exports (#​37)
• Handle non-breaking spaces in JSX (#​46)
• Allow anonymous classes to be assigned to properties (#​33)
• Add trailingFunctionCommas transformation (#​50)

v0.17.3

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• Move chalk to dependencies (#​35)

v0.17.2

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• Fix nested template literals regression (#​39)

v0.17.1

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• Error on nested rest elements (#​31)
• Allow destructuring with computed properties (#​34)

v0.17.0

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• Update dependencies
• Transpile arrow functions unconditionally if spread arguments need transpilation (#​22)
• Better object spread support (#​25)
• Rest properties (#​30)
• Fix (#​24)

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