fix incomplete parsing for C/C++ include directories

fix flags

autoload/ale/c.vim

@@ -80,8 +80,20 @@ function! ale#c#ParseCFlags(path_prefix, cflag_line) abort
         endif
 
         " Parse the cflag
-        if stridx(l:option, '-I') >= 0 ||
-           \ stridx(l:option, '-D') >= 0
+        if stridx(l:option, '-D') >= 0 ||
+           \ stridx(l:option, '-I') >= 0 ||
+           \ stridx(l:option, '-nostdinc') >= 0 ||
+           \ stridx(l:option, '-nostdinc++') >= 0 ||
+           \ stridx(l:option, '-include') >= 0 ||
+           \ stridx(l:option, '-imacros') >= 0 ||
+           \ stridx(l:option, '-idirafter') >= 0 ||
+           \ stridx(l:option, '-iprefix') >= 0 ||
+           \ stridx(l:option, '-iwithprefix') >= 0 ||
+           \ stridx(l:option, '-iwithprefixbefore') >= 0 ||
+           \ stridx(l:option, '-isysroot') >= 0 ||
+           \ stridx(l:option, '-imultilib') >= 0 ||
+           \ stridx(l:option, '-isystem') >= 0 ||
+           \ stridx(l:option, '-iquote') >= 0
             if index(l:cflags_list, l:option) < 0
                 call add(l:cflags_list, l:option)
             endif
@@ -178,7 +190,8 @@ function! ale#c#ParseCompileCommandsFlags(buffer, dir, json_list) abort
     " Search for an exact file match first.
     for l:item in a:json_list
         if bufnr(l:item.file) is a:buffer
-            return ale#c#ParseCFlags(a:dir, l:item.command)
+            " return ale#c#ParseCFlags(a:dir, l:item.command)
+            return l:item.command
         endif
     endfor
 
@@ -187,7 +200,8 @@ function! ale#c#ParseCompileCommandsFlags(buffer, dir, json_list) abort
 
     for l:item in a:json_list
         if ale#path#Simplify(fnamemodify(l:item.file, ':h')) is? l:dir
-            return ale#c#ParseCFlags(a:dir, l:item.command)
+            " return ale#c#ParseCFlags(a:dir, l:item.command)
+            return l:item.command
         endif
     endfor