Added fix subcommand options (dense-analysis#4746)

php-cs-fixer command line options are ordered. Options that appear after the
main command are applied to the main command. Options that appear after the
subcommands are applied to the subcommands. This change enables a user to
specific fix options (like --config). This change also sets the plugin to
find the the configuraiton file in the current project tree. This matches
the default behavior of other linters like eslint.

autoload/ale/fixers/php_cs_fixer.vim

@@ -4,6 +4,7 @@
 call ale#Set('php_cs_fixer_executable', 'php-cs-fixer')
 call ale#Set('php_cs_fixer_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('php_cs_fixer_options', '')
+call ale#Set('php_cs_fixer_fix_options', '')
 
 function! ale#fixers#php_cs_fixer#GetExecutable(buffer) abort
     return ale#path#FindExecutable(a:buffer, 'php_cs_fixer', [
@@ -18,7 +19,8 @@ function! ale#fixers#php_cs_fixer#Fix(buffer) abort
     return {
     \   'command': ale#Escape(l:executable)
     \       . ' ' . ale#Var(a:buffer, 'php_cs_fixer_options')
-    \       . ' fix %t',
+    \       . ' fix ' . ale#Var(a:buffer, 'php_cs_fixer_fix_options')
+    \       . ' %t',
     \   'read_temporary_file': 1,
     \}
 endfunction

test/fixers/test_php_cs_fixer.vader

@@ -1,8 +1,10 @@
 Before:
   Save g:ale_php_cs_fixer_executable
   Save g:ale_php_cs_fixer_options
+  Save g:ale_php_cs_fixer_fix_options
   let g:ale_php_cs_fixer_executable = 'php-cs-fixer'
   let g:ale_php_cs_fixer_options = ''
+  let g:ale_php_cs_fixer_fix_options = ''
 
   call ale#test#SetDirectory('/testplugin/test/fixers')
 
@@ -45,18 +47,20 @@ Execute(The php-cs-fixer callback should return the correct default values):
   \   'read_temporary_file': 1,
   \   'command': ale#Escape('php-cs-fixer')
   \      . ' ' . g:ale_php_cs_fixer_options
-  \      . ' fix %t'
+  \      . ' fix ' . g:ale_php_cs_fixer_fix_options
+  \      . ' %t'
   \ },
   \ ale#fixers#php_cs_fixer#Fix(bufnr(''))
 
 Execute(The php-cs-fixer callback should include custom php-cs-fixer options):
-  let g:ale_php_cs_fixer_options = '--config="$HOME/.php_cs"'
+  let g:ale_php_cs_fixer_options = '-nq'
+  let g:ale_php_cs_fixer_fix_options = '--config="$HOME/.php_cs"'
   call ale#test#SetFilename('../test-files/php/project-without-php-cs-fixer/test.php')
 
   AssertEqual
   \ {
   \   'command': ale#Escape(g:ale_php_cs_fixer_executable)
-  \     . ' --config="$HOME/.php_cs" fix %t',
+  \     . ' -nq fix --config="$HOME/.php_cs" %t',
   \   'read_temporary_file': 1,
   \ },
   \ ale#fixers#php_cs_fixer#Fix(bufnr(''))