Add TraitUseAdaptation and factory for it

Add TraitUse builder and useTrait builder factory

Fix updateTests.php

Add check for leading backslash in Name ctor

Fixes #523.

Add tests for var() and propertyFetch()

Add Variable and PropertyFetch node constructors

Mention makeReturnByRef() in AST_builders.markdown (#519)

Add some tests for new use builders

Add useFunction() and useConst() builder methods

Release PHP-Parser 4.0.3

Store comment at end of class in Nop statement

Fixed #509.

Check for empty $append in safeAppend()

Can happen with Nop statements.

Adjust test output

Whoops, forgot to commit this part.

Improve error recovery in arrays

Similarly to missing semicolons, the error is not indicated in the
AST.

Fixes #512.

Remove flags from phpunit.xml that have default value and colorize (#510)

Release PHP-Parser 4.0.2

Throw when printin EncapsedStringPart

This needs to go through something like Encapsed or ShellExec to
determine quotation type. Explicitly throw an exception to avoid
getting an und

Throw when printin EncapsedStringPart

This needs to go through something like Encapsed or ShellExec to
determine quotation type. Explicitly throw an exception to avoid
getting an undefined method error.

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Fix binary operator doc block comment (#504)

Remove reference to bitwise and in doc block.

Fixes from PHPStan (#502)

Use dedicated assertNull assertion (#503)

Error recovery for functions without body

Support recovery for param without variable

We store an Expr\Error for the variable in this case.

Fix typo in UPGRADE-4.0 (#498)

Fix typos in UPGRADE-4.0 (#497)

Recover from foreach without as