tests: re-enable "tab drag in tabline to the left moves tab left" (#10588)

Ref: https://github.com/neovim/neovim/pull/4874

.travis.yml

@@ -84,40 +84,6 @@ addons:
 
 jobs:
   include:
-    - stage: baseline
-      name: clang-asan
-      os: linux
-      compiler: clang
-      # Use Lua so that ASAN can test our embedded Lua support. 8fec4d53d0f6
-      env:
-        - CLANG_SANITIZER=ASAN_UBSAN
-        - CMAKE_FLAGS="$CMAKE_FLAGS -DPREFER_LUA=ON"
-        - *common-job-env
-    - name: gcc-functionaltest-lua
-      os: linux
-      compiler: gcc
-      env:
-        - FUNCTIONALTEST=functionaltest-lua
-        - CMAKE_FLAGS="$CMAKE_FLAGS -DPREFER_LUA=ON"
-        - DEPS_CMAKE_FLAGS="$DEPS_CMAKE_FLAGS -DUSE_BUNDLED_LUAJIT=OFF"
-        - *common-job-env
-    - name: gcc-32bit
-      os: linux
-      # Travis creates a cache per compiler. Set a different value here to
-      # store 32-bit dependencies in a separate cache.
-      compiler: gcc
-      env:
-        - BUILD_32BIT=ON
-        # Minimum required CMake.
-        - CMAKE_URL=https://cmake.org/files/v2.8/cmake-2.8.12-Linux-i386.sh
-        - *common-job-env
-    - if: branch = master AND commit_message !~ /\[skip.lint\]/
-      name: lint
-      os: linux
-      env:
-        - CI_TARGET=lint
-        - *common-job-env
-
     - stage: second stage
       name: "macOS: clang"
       os: osx
@@ -132,27 +98,10 @@ jobs:
       env:
         - *common-job-env
 
-    - name: gcc-coverage (gcc 9)
-      os: linux
-      compiler: gcc-9
-      env:
-        - GCOV=gcov
-        - CMAKE_FLAGS="$CMAKE_FLAGS -DUSE_GCOV=ON"
-        - GCOV_ERROR_FILE="/tmp/libgcov-errors.log"
-        - *common-job-env
-      addons:
-        apt:
-          sources:
-            - sourceline: 'ppa:ubuntu-toolchain-r/test'
-          packages:
-            - *common-apt-packages
-            - gcc-9
-
     - name: clang-tsan
       os: linux
       compiler: clang
       env:
-        - CLANG_SANITIZER=TSAN
         - *common-job-env
   allow_failures:
     - name: clang-tsan

appveyor.yml

@@ -1,42 +0,0 @@
-version: '{build}'
-environment:
-  APPVEYOR_CACHE_ENTRY_ZIP_ARGS: "-t7z -m0=lzma -mx=9"
-  DEPS_BUILD_DIR: "C:/projects/nvim-deps"
-  DEPS_PREFIX: "C:/projects/nvim-deps/usr"
-  # Silence/redirect errors due to missing locking support (via libgcov).
-  GCOV_ERROR_FILE: "$(TEMP)/libgcov-errors.log"
-image: Visual Studio 2017
-configuration:
-- MINGW_64-gcov
-- MINGW_32
-- MSVC_64
-- MSVC_32
-init:
-- ps: |
-    # Pull requests: skip some build configurations to save time.
-    if ($env:APPVEYOR_PULL_REQUEST_HEAD_COMMIT -and $env:CONFIGURATION -match '^(MSVC_64|MINGW_32)$') {
-      $env:APPVEYOR_CACHE_SKIP_SAVE = "true"
-      Exit-AppVeyorBuild
-    }
-# RDP
-#- ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
-matrix:
-  fast_finish: true
-install: []
-before_build:
-- ps: Install-Product node 8
-build_script:
-- powershell ci\build.ps1
-after_build:
-- ps: |
-    if (Test-Path $env:GCOV_ERROR_FILE) {
-      Get-Content $env:GCOV_ERROR_FILE -Head 10
-      Get-Content $env:GCOV_ERROR_FILE -Tail 10
-    } else {
-      write-host "no GCOV_ERROR_FILE"
-    }
-cache:
-- C:\projects\nvim-deps -> third-party\**
-artifacts:
-- path: build/Neovim.zip
-- path: build/bin/nvim.exe

test/functional/ui/mouse_spec.lua

@@ -150,13 +150,6 @@ describe('ui/mouse/input', function()
     end)
 
     it('in tabline to the left moves tab left', function()
-      if helpers.skip_fragile(pending,
-        os.getenv("TRAVIS") and (helpers.os_name() == "osx"
-          or os.getenv("CLANG_SANITIZER") == "ASAN_UBSAN"))  -- #4874
-      then
-        return
-      end
-
       feed_command('%delete')
       insert('this is foo')
       feed_command('silent file foo | tabnew | file bar')