Add GitLab MTR runs to ensure support past 2038

A new GitLab MTR run is added which uses libfaketime to simulate
starting the server and running the test suite in the future.
The job simulates running in two times in the year 2038,
once before the signed 32 bit UNIX limit and once after. This change
helps to ensure that all future changes preserve the ability for the
engine start and function past the year 2038.

All new code of the whole pull request, including one or several
files that are either new files or modified ones, are contributed
under the BSD-new license. I am contributing on behalf of my
employer Amazon Web Services, Inc.

.gitlab-ci.yml

@@ -283,23 +283,20 @@ centos7:
       - rpm
       - builddir/_CPack_Packages/Linux/RPM/SPECS/
 
-.mysql-test-run: &mysql-test-run-def
-  stage: test
-  script:
+.mysql-test-run: &mysql-test-run-def |
     # Install packages so tests and the dependencies install
     # @TODO: RPM missing 'patch' and 'diff' as dependency, so installing it manually for now
-    - yum install -y rpm/*.rpm patch diffutils
+    yum install -y rpm/*.rpm patch diffutils
     # mtr expects to be launched in-place and with write access to it's own directories
-    - cd /usr/share/mariadb-test
+    cd /usr/share/mariadb-test
     # Skip failing tests
-    - |
-      echo "
+    echo "
       main.mysqldump : Field separator argument is not what is expected; check the manual when executing 'SELECT INTO OUTFILE'
       main.flush_logs_not_windows : query 'flush logs' succeeded - should have failed with error ER_CANT_CREATE_FILE (1004)
       main.mysql_upgrade_noengine : upgrade output order does not match the expected
       main.func_math              : MDEV-20966 - Wrong error code
-      " > skiplist
-    - ./mtr --suite=main --force --parallel=auto --xml-report=$CI_PROJECT_DIR/junit.xml --skip-test-list=skiplist $RESTART_POLICY
+    " > skiplist
+    $SIMULATE_TIME ./mtr --suite=main --force --parallel=auto --xml-report=$CI_PROJECT_DIR/junit.xml --skip-test-list=skiplist $MTR_FLAGS
 
 mysql-test-run:
   stage: test
@@ -307,7 +304,8 @@ mysql-test-run:
     - fedora
   needs:
     - fedora
-  <<: *mysql-test-run-def
+  script:
+    - *mysql-test-run-def
   artifacts:
     when: always  # Also show results when tests fail
     reports:
@@ -325,12 +323,13 @@ mysql-test-run:
 mysql-test-run-asan:
   stage: test
   variables:
-    RESTART_POLICY: "--force-restart"
+    MTR_FLAGS: "--force-restart"
   dependencies:
     - "fedora-sanitizer: [-DWITH_ASAN=YES]"
   needs:
     - "fedora-sanitizer: [-DWITH_ASAN=YES]"
-  <<: *mysql-test-run-def
+  script:
+    - *mysql-test-run-def
   allow_failure: true
   artifacts:
     when: always  # Also show results when tests fail
@@ -341,12 +340,13 @@ mysql-test-run-asan:
 mysql-test-run-tsan:
   stage: test
   variables:
-    RESTART_POLICY: "--force-restart"
+    MTR_FLAGS: "--force-restart"
   dependencies:
     - "fedora-sanitizer: [-DWITH_TSAN=YES]"
   needs:
     - "fedora-sanitizer: [-DWITH_TSAN=YES]"
-  <<: *mysql-test-run-def
+  script:
+    - *mysql-test-run-def
   allow_failure: true
   artifacts:
     when: always  # Also show results when tests fail
@@ -357,12 +357,13 @@ mysql-test-run-tsan:
 mysql-test-run-ubsan:
   stage: test
   variables:
-    RESTART_POLICY: "--force-restart"
+    MTR_FLAGS: "--force-restart"
   dependencies:
     - "fedora-sanitizer: [-DWITH_UBSAN=YES]"
   needs:
     - "fedora-sanitizer: [-DWITH_UBSAN=YES]"
-  <<: *mysql-test-run-def
+  script:
+    - *mysql-test-run-def
   allow_failure: true
   artifacts:
     when: always  # Also show results when tests fail
@@ -370,6 +371,28 @@ mysql-test-run-ubsan:
       junit:
         - junit.xml
 
+mysql-test-run-future:
+  stage: test
+  variables:
+    MTR_FLAGS: "--max-test-fail=0"
+  dependencies:
+    - fedora
+  needs:
+    - fedora
+  script:
+    - yum install -y faketime
+    - *mysql-test-run-def
+  artifacts:
+    when: always  # Also show results when tests fail
+    reports:
+      junit:
+        - junit.xml
+  parallel:
+    matrix:
+    # The reason we test in two different future times is for the ability to separate between 
+    # failures pertaining to general time expiry issues and failures specific to the 32-bit time/Y2038 problem
+      - SIMULATE_TIME: ["faketime 2038-01-20",  "faketime 2038-01-18"]
+
 rpmlint:
   stage: test
   dependencies: