Send character column to server, not byte column

Author: nickspoons

autoload/OmniSharp/stdio.vim

@@ -129,7 +129,7 @@ function! OmniSharp#stdio#Request(command, opts) abort
   else
     let bufnr = bufnr('%')
     let lnum = get(a:opts, 'LineNum', line('.'))
-    let cnum = get(a:opts, 'ColNum', col('.'))
+    let cnum = get(a:opts, 'ColNum', charcol('.'))
   endif
   let host = OmniSharp#GetHost(bufnr)
   let job = host.job

test/rename.vader

@@ -11,7 +11,7 @@ Given cs():
 
 Execute (rename constructor):
   call OmniSharpTestInitializeBuffer('RenameTo')
-  call search("TestRenameTo()")
+  call search('TestRenameTo()')
   call OmniSharpTestAwait('OmniSharp#actions#rename#To', ['Renamed'])
 
 Expect cs(should rename class):
@@ -21,3 +21,24 @@ Expect cs(should rename class):
     {
     }
   }
+
+Given cs():
+  public class TestOmdøbAnother
+  {
+    public TestOmdøbAnother()
+    {
+    }
+  }
+
+Execute (rename after multi-byte characters):
+  call OmniSharpTestInitializeBuffer('RenameAnother')
+  call search('TestOmdøbAnother\ze()', 'e')
+  call OmniSharpTestAwait('OmniSharp#actions#rename#To', ['RenamedAnother'])
+
+Expect cs(should rename class):
+  public class RenamedAnother
+  {
+    public RenamedAnother()
+    {
+    }
+  }

test/vimrc

@@ -21,7 +21,7 @@ let g:OmniSharp_start_without_solution = 1
 let g:OmniSharp_highlighting = 0
 let g:OmniSharp_selector_ui = ''
 let g:OmniSharp_open_quickfix = 0
-let g:OmniSharp_loglevel = 'info'
+let g:OmniSharp_loglevel = 'none'
 
 let g:OmniSharp_popup = 0
 let g:OmniSharp_test_timeout = 10