fixed a regression

src/Parser.php

@@ -334,7 +334,15 @@ class Parser implements \Twig_ParserInterface
 
     public function getImportedSymbol($type, $alias)
     {
-        return isset($this->importedSymbols[0][$type][$alias]) ? $this->importedSymbols[0][$type][$alias] : null;
+        if (null !== $this->peekBlockStack()) {
+            foreach ($this->importedSymbols as $functions) {
+                if (isset($functions[$type][$alias])) {
+                    return $functions[$type][$alias];
+                }
+            }
+        } else {
+            return isset($this->importedSymbols[0][$type][$alias]) ? $this->importedSymbols[0][$type][$alias] : null;
+        }
     }
 
     public function isMainScope()

test/Twig/Tests/Fixtures/tags/macro/from_in_block_is_local.test

@@ -0,0 +1,18 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% block foo %}
+    {%- from _self import input as linput %}
+{% endblock %}
+
+{% block bar %}
+    {{- linput('username') }}
+{% endblock %}
+
+{% macro input(name) -%}
+    <input name="{{ name }}">
+{% endmacro %}
+--DATA--
+return []
+--EXCEPTION--
+Twig\Error\SyntaxError: Unknown "linput" function in "index.twig" at line 7.

test/Twig/Tests/Fixtures/tags/macro/import_and_blocks.test

@@ -0,0 +1,36 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% import _self as macros %}
+{% from _self import input %}
+
+{% block foo %}
+    {{- macros.input('username') }}
+    {{- input('username') }}
+
+    {%- import _self as lmacros %}
+    {%- from _self import input as linput %}
+
+    {{- lmacros.input('username') }}
+    {{- linput('username') }}
+{% endblock %}
+
+{% block bar %}
+    {{- macros.input('username') }}
+    {{- input('username') }}
+{% endblock %}
+
+{% macro input(name) -%}
+    <input name="{{ name }}">
+{% endmacro %}
+--DATA--
+return []
+--EXPECT--
+<input name="username">
+<input name="username">
+<input name="username">
+<input name="username">
+
+
+<input name="username">
+<input name="username">

test/Twig/Tests/Fixtures/tags/macro/import_in_block_is_local.test

@@ -0,0 +1,18 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% block foo %}
+    {%- import _self as lmacros %}
+{% endblock %}
+
+{% block bar %}
+    {{- lmacros.input('username') }}
+{% endblock %}
+
+{% macro input(name) -%}
+    <input name="{{ name }}">
+{% endmacro %}
+--DATA--
+return []
+--EXCEPTION--
+Twig\Error\RuntimeError: Variable "lmacros" does not exist in "index.twig" at line 7.