Normalize enum value to ClassConstFetch

Fixes #930

(cherry picked from commit 8a21ec3182533ee6448a4efb8d238a4163b89297)

Don't align phpdoc tags

I did this to start with, but then alignment kept being broken
during refactorings, and at some point I switched to not aligning,
and now we have a big mess.

Don't align phpdoc tags

I did this to start with, but then alignment kept being broken
during refactorings, and at some point I switched to not aligning,
and now we have a big mess.

Add a php-cs-fixer rule to consistently not align phpdoc tags.

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Move verifyModifier/verifyClassModifier to Modifiers class

Now that the Modifiers are in a separate class, these *internal*
verification methods should also be moved there.

Rename Scalar\LNumber to Scalar\Int_

Rename Scalar\DNumber to Scalar\Float_

Rename Expr\ArrayItem to ArrayItem

Array items are not expressions by themselves.

Add php-cs-fixer config and reformat

The formatting in this project has become something of a mess,
because it changed over time. Add a CS fixer config and reformat
to the desired st

Add php-cs-fixer config and reformat

The formatting in this project has become something of a mess,
because it changed over time. Add a CS fixer config and reformat
to the desired style, which is PSR-12, but with sane brace placement.

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Handle true/false/null types in builder APIs

[PHP 8.2] Add readonly class support (#834)

RFC: https://wiki.php.net/rfc/readonly_classes

PHP implementation: php/php-src#7305

Unified builder methods for setting types

Add support for intersection types

Introduce ComplexType base class

With the upcoming addition of intersection types, a type can
be Identifier|Name|NullableType|UnionType|IntersectionType, which
is quite the mouthful.

Introduce ComplexType base class

With the upcoming addition of intersection types, a type can
be Identifier|Name|NullableType|UnionType|IntersectionType, which
is quite the mouthful. Give NullableType and UnionType a common
base class ComplexType, which does not have any behavior, but
allows to write these types (and check them in instanceof) more
easily.

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Simplify BuilderHelpers::normalizeName() implementation

In order to get rid of the flag in `BuilderHelpers::normalizeNameCommon()` I have moved all the logic related to the normalization of

Simplify BuilderHelpers::normalizeName() implementation

In order to get rid of the flag in `BuilderHelpers::normalizeNameCommon()` I have moved all the logic related to the normalization of the name to the `BuilderHelpers::normalizeName()` method and expr-related stuff to the `BuilderHelpers::normalizeNameOrExpr()` method which later calls the basic `normalizeName()` as well

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Add support for "never" type in the BuilderHelpers::normalizeType()

Add missing tests for methods of BuilderHelpers

Add addAttribute() method to Builders with normalizer (#782)

Adds addAttribute() method to Builders of all nodes supporting attributes with BuilderHelpers::normalizeAttribute() usage inside

Add addAttribute() method to Builders with normalizer (#782)

Adds addAttribute() method to Builders of all nodes supporting attributes with BuilderHelpers::normalizeAttribute() usage inside so we can pass both Node\Attribute and Node\AttributeGroup instances.

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Add support for the mixed type

Add union type to ParamBuilder and BuilderHelpers

Add tests for var() and propertyFetch()

Add constFetch() and classConstFetch() builders

Add funcCall(), methodCall() and staticCall() builders

[CS] Open class brackets in new line

[CS] Use elseif instead of else if

Conflicts:
lib/PhpParser/TokenStream.php

Add strict_types to lib code

[cs] use strict comparison where allowed