Merge branch '3.x'

Conflicts:
lib/PhpParser/Parser/Php5.php
lib/PhpParser/Parser/Php7.php
test/code/parser/stmt/class/name.test

Handle "extends static" etc more gracefully

Use class_name production and emit the same error as for
"extends self" and "extends parent". It's weird that "extends
static" gives a dif

Handle "extends static" etc more gracefully

Use class_name production and emit the same error as for
"extends self" and "extends parent". It's weird that "extends
static" gives a different result than those two.

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Support recovery from invalid trailing commas

Use p() in pPrec() for easier extensibility

Merge branch '3.x'

Change one function to protected

Fix typo with-posititions => with-positions

Merge branch '3.x'

Conflicts:
grammar/php7.y
lib/PhpParser/Parser/Php7.php
test/code/parser/expr/uvs/globalNonSimpleVarError.test
test/code/pa

Merge branch '3.x'

Conflicts:
grammar/php7.y
lib/PhpParser/Parser/Php7.php
test/code/parser/expr/uvs/globalNonSimpleVarError.test
test/code/parser/stmt/namespace/groupUseErrors.test

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Recover from missing semicolons on statements

Mark version 2.x as unsupported

No commits to this branch for five months, mark as unsupported.

Use closures instead of methods for semantic actions

The dispatch using $this->{'reduceRule' . $rule}() is very expensive
because it involves
* One allocation when converting $rule

Use closures instead of methods for semantic actions

The dispatch using $this->{'reduceRule' . $rule}() is very expensive
because it involves
* One allocation when converting $rule to a string
* Another allocation when concatenating the two strings
* Lowercasing during the method call
* Various uncached method checks, e.g. visibility.

Using an array of closures for semantic action dispatch is
significantly more efficient.

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Use local var for $stackPos

We're accessing $this->stackPos a lot, and property accesses are
much more expensive than local variable acesses. Its cheaper to
use a local var and pass

Use local var for $stackPos

We're accessing $this->stackPos a lot, and property accesses are
much more expensive than local variable acesses. Its cheaper to
use a local var and pass it as an argument to semantic actions.

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Remove XML serializer

Merge branch '3.x'

Release PHP-Parser 3.0.3

Update changelog

Deprecate XML serializer

Drop support for false return value in NodeTraverser

Throw if NodeVisitor returns invalid value

Throw on nested array in NodeTraverser

The AST never uses deeply nested arrays, so don't support this in
the node traverser. Throw an exception instead.

Merge branch '3.x'

Conflicts:
lib/PhpParser/Node/Expr/ClassConstFetch.php
test/PhpParser/PrettyPrinterTest.php

Pretty print: Handle Error in ClassConstFetch

Add NodeFinder class

To simplify basic node finding operations.

Merge branch '3.x'

Conflicts:
lib/PhpParser/NodeVisitor.php

Implement NodeTraverser::STOP_TRAVERSAL

Conflicts:
lib/PhpParser/NodeVisitor.php