Revert now unnecessary checks for null-types

This reverts commits:

c721304a47
885d908ea3
a0909989f7
fb4ad59ddb
0a9a67cf54
0d1624d4d1
d018cfd5cb
0504fdd00b
a2fd10fe19

Conflicts:

	src/plugins/cpptools/cppcodecompletion.cpp

Reviewed-by: Roberto Raggi

src/plugins/cppeditor/cpphoverhandler.cpp

@@ -256,7 +256,7 @@ void CppHoverHandler::updateHelpIdAndTooltip(TextEditor::ITextEditor *editor, in
         const QList<TypeOfExpression::Result> types =
                 typeOfExpression(expression, doc, lastSymbol);
 
-        if (!types.isEmpty() && types.first().first) {
+        if (!types.isEmpty()) {
             FullySpecifiedType firstType = types.first().first;
             Symbol *symbol = types.first().second;
             FullySpecifiedType docType = firstType;