Fix handling of aliases to use consistent format everywhere

src/Composer/DependencyResolver/LockTransaction.php

@@ -122,8 +122,10 @@ class LockTransaction extends Transaction
 
         foreach ($this->resultPackages['all'] as $package) {
             if ($package instanceof AliasPackage) {
-                if (isset($aliases[$package->getName()])) {
-                    $usedAliases[$package->getName()] = $aliases[$package->getName()];
+                foreach ($aliases as $alias) {
+                    if ($alias['package'] === $package->getName()) {
+                        $usedAliases[] = $alias;
+                    }
                 }
             }
         }

src/Composer/Package/Locker.php

@@ -317,24 +317,13 @@ class Locker
             'content-hash' => $this->contentHash,
             'packages' => null,
             'packages-dev' => null,
-            'aliases' => array(),
+            'aliases' => $aliases,
             'minimum-stability' => $minimumStability,
             'stability-flags' => $stabilityFlags,
             'prefer-stable' => $preferStable,
             'prefer-lowest' => $preferLowest,
         );
 
-        foreach ($aliases as $package => $versions) {
-            foreach ($versions as $version => $alias) {
-                $lock['aliases'][] = array(
-                    'alias' => $alias['alias'],
-                    'alias_normalized' => $alias['alias_normalized'],
-                    'version' => $version,
-                    'package' => $package,
-                );
-            }
-        }
-
         $lock['packages'] = $this->lockPackages($packages);
         if (null !== $devPackages) {
             $lock['packages-dev'] = $this->lockPackages($devPackages);

tests/Composer/Test/DependencyResolver/PoolBuilderTest.php

@@ -46,12 +46,9 @@ class PoolBuilderTest extends TestCase
         }, $stabilityFlags);
 
         $parser = new VersionParser();
-        $normalizedAliases = array();
-        foreach ($rootAliases as $alias) {
-            $normalizedAliases[$alias['package']][$parser->normalize($alias['version'])] = array(
-                'alias' => $alias['alias'],
-                'alias_normalized' => $parser->normalize($alias['alias']),
-            );
+        foreach ($rootAliases as $index => $alias) {
+            $rootAliases[$index]['version'] = $parser->normalize($alias['version']);
+            $rootAliases[$index]['alias_normalized'] = $parser->normalize($alias['alias']);
         }
 
         $loader = new ArrayLoader();
@@ -74,7 +71,7 @@ class PoolBuilderTest extends TestCase
             return $pkg;
         };
 
-        $repositorySet = new RepositorySet($minimumStability, $stabilityFlags, $normalizedAliases);
+        $repositorySet = new RepositorySet($minimumStability, $stabilityFlags, $rootAliases);
         $repositorySet->addRepository($repo = new ArrayRepository());
         foreach ($packages as $package) {
             $repo->addPackage($loadPackage($package));