[ExpressionLanguage] Add more parameter types.

src/Symfony/Component/ExpressionLanguage/Compiler.php

@@ -28,7 +28,7 @@ class Compiler implements ResetInterface
         $this->functions = $functions;
     }
 
-    public function getFunction($name)
+    public function getFunction(string $name)
     {
         return $this->functions[$name];
     }

src/Symfony/Component/ExpressionLanguage/Node/ArrayNode.php

@@ -46,7 +46,7 @@ class ArrayNode extends Node
         $compiler->raw(']');
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         $result = [];
         foreach ($this->getKeyValuePairs() as $pair) {

src/Symfony/Component/ExpressionLanguage/Node/BinaryNode.php

@@ -84,7 +84,7 @@ class BinaryNode extends Node
         ;
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         $operator = $this->attributes['operator'];
         $left = $this->nodes['left']->evaluate($functions, $values);

src/Symfony/Component/ExpressionLanguage/Node/ConditionalNode.php

@@ -40,7 +40,7 @@ class ConditionalNode extends Node
         ;
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         if ($this->nodes['expr1']->evaluate($functions, $values)) {
             return $this->nodes['expr2']->evaluate($functions, $values);

src/Symfony/Component/ExpressionLanguage/Node/ConstantNode.php

@@ -36,7 +36,7 @@ class ConstantNode extends Node
         $compiler->repr($this->attributes['value']);
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         return $this->attributes['value'];
     }

src/Symfony/Component/ExpressionLanguage/Node/FunctionNode.php

@@ -40,7 +40,7 @@ class FunctionNode extends Node
         $compiler->raw($function['compiler'](...$arguments));
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         $arguments = [$values];
         foreach ($this->nodes['arguments']->nodes as $node) {

src/Symfony/Component/ExpressionLanguage/Node/GetAttrNode.php

@@ -64,7 +64,7 @@ class GetAttrNode extends Node
         }
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         switch ($this->attributes['type']) {
             case self::PROPERTY_CALL:

src/Symfony/Component/ExpressionLanguage/Node/NameNode.php

@@ -33,7 +33,7 @@ class NameNode extends Node
         $compiler->raw('$'.$this->attributes['name']);
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         return $values[$this->attributes['name']];
     }

src/Symfony/Component/ExpressionLanguage/Node/Node.php

@@ -64,7 +64,7 @@ class Node
         }
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         $results = [];
         foreach ($this->nodes as $node) {
@@ -90,7 +90,7 @@ class Node
         return $dump;
     }
 
-    protected function dumpString($value)
+    protected function dumpString(string $value)
     {
         return sprintf('"%s"', addcslashes($value, "\0\t\"\\"));
     }

src/Symfony/Component/ExpressionLanguage/Node/UnaryNode.php

@@ -45,7 +45,7 @@ class UnaryNode extends Node
         ;
     }
 
-    public function evaluate($functions, $values)
+    public function evaluate(array $functions, array $values)
     {
         $value = $this->nodes['node']->evaluate($functions, $values);
         switch ($this->attributes['operator']) {

src/Symfony/Component/ExpressionLanguage/Parser.php

@@ -146,7 +146,7 @@ class Parser
         return $this->parsePrimaryExpression();
     }
 
-    protected function parseConditionalExpression($expr)
+    protected function parseConditionalExpression(Node\Node $expr)
     {
         while ($this->stream->current->test(Token::PUNCTUATION_TYPE, '?')) {
             $this->stream->next();
@@ -299,7 +299,7 @@ class Parser
         return $node;
     }
 
-    public function parsePostfixExpression($node)
+    public function parsePostfixExpression(Node\Node $node)
     {
         $token = $this->stream->current;
         while (Token::PUNCTUATION_TYPE == $token->type) {