Make trigger error visible

src/Composer/DependencyResolver/DefaultPolicy.php

@@ -67,6 +67,8 @@ class DefaultPolicy implements PolicyInterface
      */
     public function selectPreferedPackages(Pool $pool, array $installedMap, array $literals, $requiredPackage = null)
     {
+        trigger_error('Method selectPreferedPackages is deprecated and replaced by selectPreferredPackages, please update your usage', E_USER_DEPRECATED);
+
         return $this->selectPreferredPackages($pool, $installedMap, $literals, $requiredPackage);
     }
 

src/Composer/Package/LinkConstraint/EmptyConstraint.php

@@ -14,7 +14,7 @@ namespace Composer\Package\LinkConstraint;
 
 use Composer\Semver\Constraint\EmptyConstraint as SemverEmptyConstraint;
 
-@trigger_error('The ' . __NAMESPACE__ . '\EmptyConstraint class is deprecated, use Composer\Semver\Constraint\EmptyConstraint instead.', E_USER_DEPRECATED);
+trigger_error('The ' . __NAMESPACE__ . '\EmptyConstraint class is deprecated, use Composer\Semver\Constraint\EmptyConstraint instead.', E_USER_DEPRECATED);
 
 /**
  * @deprecated use Composer\Semver\Constraint\EmptyConstraint instead

src/Composer/Package/LinkConstraint/LinkConstraintInterface.php

@@ -14,7 +14,7 @@ namespace Composer\Package\LinkConstraint;
 
 use Composer\Semver\Constraint\ConstraintInterface;
 
-@trigger_error('The ' . __NAMESPACE__ . '\LinkConstraintInterface interface is deprecated, use Composer\Semver\Constraint\ConstraintInterface instead.', E_USER_DEPRECATED);
+trigger_error('The ' . __NAMESPACE__ . '\LinkConstraintInterface interface is deprecated, use Composer\Semver\Constraint\ConstraintInterface instead.', E_USER_DEPRECATED);
 
 /**
  * @deprecated use Composer\Semver\Constraint\ConstraintInterface instead

src/Composer/Package/LinkConstraint/MultiConstraint.php

@@ -14,7 +14,7 @@ namespace Composer\Package\LinkConstraint;
 
 use Composer\Semver\Constraint\MultiConstraint as SemverMultiConstraint;
 
-@trigger_error('The ' . __NAMESPACE__ . '\MultiConstraint class is deprecated, use Composer\Semver\Constraint\MultiConstraint instead.', E_USER_DEPRECATED);
+trigger_error('The ' . __NAMESPACE__ . '\MultiConstraint class is deprecated, use Composer\Semver\Constraint\MultiConstraint instead.', E_USER_DEPRECATED);
 
 /**
  * @deprecated use Composer\Semver\Constraint\MultiConstraint instead

src/Composer/Package/LinkConstraint/SpecificConstraint.php

@@ -14,7 +14,7 @@ namespace Composer\Package\LinkConstraint;
 
 use Composer\Semver\Constraint\AbstractConstraint;
 
-@trigger_error('The ' . __NAMESPACE__ . '\SpecificConstraint abstract class is deprecated, use Composer\Semver\Constraint\AbstractConstraint instead.', E_USER_DEPRECATED);
+trigger_error('The ' . __NAMESPACE__ . '\SpecificConstraint abstract class is deprecated, use Composer\Semver\Constraint\AbstractConstraint instead.', E_USER_DEPRECATED);
 
 /**
  * @deprecated use Composer\Semver\Constraint\AbstractConstraint instead

src/Composer/Package/LinkConstraint/VersionConstraint.php

@@ -14,7 +14,7 @@ namespace Composer\Package\LinkConstraint;
 
 use Composer\Semver\Constraint\Constraint;
 
-@trigger_error('The ' . __NAMESPACE__ . '\VersionConstraint class is deprecated, use Composer\Semver\Constraint\Constraint instead.', E_USER_DEPRECATED);
+trigger_error('The ' . __NAMESPACE__ . '\VersionConstraint class is deprecated, use Composer\Semver\Constraint\Constraint instead.', E_USER_DEPRECATED);
 
 /**
  * @deprecated use Composer\Semver\Constraint\Constraint instead

src/Composer/Util/SpdxLicense.php

@@ -14,7 +14,7 @@ namespace Composer\Util;
 
 use Composer\Spdx\SpdxLicenses;
 
-@trigger_error('The ' . __NAMESPACE__ . '\SpdxLicense class is deprecated, use Composer\Spdx\SpdxLicenses instead.', E_USER_DEPRECATED);
+trigger_error('The ' . __NAMESPACE__ . '\SpdxLicense class is deprecated, use Composer\Spdx\SpdxLicenses instead.', E_USER_DEPRECATED);
 
 /**
  * @deprecated use Composer\Spdx\SpdxLicenses instead