feature #32458 Remove support for Twig 1.x (fabpot)

This PR was merged into the 5.0-dev branch.

Discussion
----------

Remove support for Twig 1.x

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

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 - Bug fixes must be submitted against the lowest maintained branch where they apply
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 - Features and deprecations must be submitted against branch 4.4.
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Commits
-------

906b3ca89a removed support for Twig 1.x

composer.json

@@ -21,7 +21,7 @@
         "doctrine/event-manager": "~1.0",
         "doctrine/persistence": "~1.0",
         "fig/link-util": "^1.0",
-        "twig/twig": "^1.41|^2.10",
+        "twig/twig": "^2.10",
         "psr/cache": "~1.0",
         "psr/container": "^1.0",
         "psr/link": "^1.0",

src/Symfony/Bridge/Twig/composer.json

@@ -18,7 +18,7 @@
     "require": {
         "php": "^7.2.9",
         "symfony/translation-contracts": "^1.1",
-        "twig/twig": "^1.41|^2.10"
+        "twig/twig": "^2.10"
     },
     "require-dev": {
         "egulias/email-validator": "^2.0",

src/Symfony/Bundle/FrameworkBundle/composer.json

@@ -60,7 +60,7 @@
         "symfony/web-link": "^4.4|^5.0",
         "doctrine/annotations": "~1.0",
         "phpdocumentor/reflection-docblock": "^3.0|^4.0",
-        "twig/twig": "~1.34|~2.4"
+        "twig/twig": "^2.4"
     },
     "conflict": {
         "phpdocumentor/reflection-docblock": "<3.0",

src/Symfony/Bundle/SecurityBundle/composer.json

@@ -44,7 +44,7 @@
         "symfony/yaml": "^4.4|^5.0",
         "symfony/expression-language": "^4.4|^5.0",
         "doctrine/doctrine-bundle": "^1.5|^2.0",
-        "twig/twig": "~1.34|~2.4"
+        "twig/twig": "^2.4"
     },
     "conflict": {
         "symfony/browser-kit": "<4.4",

src/Symfony/Bundle/TwigBundle/composer.json

@@ -23,7 +23,7 @@
         "symfony/http-foundation": "^4.4|^5.0",
         "symfony/http-kernel": "^4.4|^5.0",
         "symfony/polyfill-ctype": "~1.8",
-        "twig/twig": "~1.41|~2.10"
+        "twig/twig": "^2.10"
     },
     "require-dev": {
         "symfony/asset": "^4.4|^5.0",

src/Symfony/Bundle/WebProfilerBundle/composer.json

@@ -22,7 +22,7 @@
         "symfony/routing": "^4.4|^5.0",
         "symfony/twig-bundle": "^4.4|^5.0",
         "symfony/var-dumper": "^4.4|^5.0",
-        "twig/twig": "^1.41|^2.10"
+        "twig/twig": "^2.10"
     },
     "require-dev": {
         "symfony/console": "^4.4|^5.0",

src/Symfony/Component/HttpKernel/composer.json

@@ -40,7 +40,7 @@
         "symfony/translation-contracts": "^1.1",
         "symfony/var-dumper": "^4.4|^5.0",
         "psr/cache": "~1.0",
-        "twig/twig": "^1.34|^2.4"
+        "twig/twig": "^2.4"
     },
     "provide": {
         "psr/log-implementation": "1.0"
@@ -51,7 +51,7 @@
         "symfony/dependency-injection": "<4.4",
         "symfony/translation": "<4.4",
         "symfony/var-dumper": "<4.4",
-        "twig/twig": "<1.34|<2.4,>=2"
+        "twig/twig": "<2.4"
     },
     "suggest": {
         "symfony/browser-kit": "",

src/Symfony/Component/VarDumper/composer.json

@@ -23,7 +23,7 @@
         "ext-iconv": "*",
         "symfony/console": "^4.4|^5.0",
         "symfony/process": "^4.4|^5.0",
-        "twig/twig": "~1.34|~2.4"
+        "twig/twig": "^2.4"
     },
     "conflict": {
         "phpunit/phpunit": "<5.4.3",