Do not disable omnifunc when YCM semantic completion is disabled

Allow users to still trigger Vim's omnifunc through C-Space when the
g:ycm_filetype_specific_completion_to_disable option is set for the current
filetype.

python/ycm/omni_completer.py

@@ -57,11 +57,22 @@ def ShouldUseNow( self, request_data ):
 
 
   def ShouldUseNowInner( self, request_data ):
-    if request_data.get( 'force_semantic', False ):
+    if request_data[ 'force_semantic' ]:
       return True
+    if self.CurrentFiletypeCompletionDisabled():
+      return False
     return super( OmniCompleter, self ).ShouldUseNowInner( request_data )
 
 
+  def CurrentFiletypeCompletionDisabled( self ):
+    filetypes = vimsupport.CurrentFiletypes()
+    filetype_to_disable = self.user_options[
+      'filetype_specific_completion_to_disable' ]
+    if '*' in filetype_to_disable:
+      return True
+    return any( [ x in filetype_to_disable for x in filetypes ] )
+
+
   def ComputeCandidates( self, request_data ):
     if self.ShouldUseCache():
       return super( OmniCompleter, self ).ComputeCandidates( request_data )

python/ycm/youcompleteme.py

@@ -301,8 +301,7 @@ def RestartServer( self ):
   def SendCompletionRequest( self, force_semantic = False ):
     request_data = BuildRequestData()
     request_data[ 'force_semantic' ] = force_semantic
-    if ( not self.NativeFiletypeCompletionAvailable() and
-         self.CurrentFiletypeCompletionEnabled() ):
+    if not self.NativeFiletypeCompletionAvailable():
       wrapped_request_data = RequestWrap( request_data )
       if self._omnicomp.ShouldUseNow( wrapped_request_data ):
         self._latest_completion_request = OmniCompletionRequest(
@@ -814,8 +813,7 @@ def CurrentFiletypeCompletionEnabled( self ):
       'filetype_specific_completion_to_disable' ]
     if '*' in filetype_to_disable:
       return False
-    else:
-      return not any( [ x in filetype_to_disable for x in filetypes ] )
+    return not any( [ x in filetype_to_disable for x in filetypes ] )
 
 
   def ShowDetailedDiagnostic( self ):