[LyX/master] Annotate missing break in switch for coverity

[Jean-Marc Lasgouttes]

commit 3b49d6bd273fec7cf917313fde0ec4d78b125730
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Sat Sep 12 22:19:59 2015 +0200

    Annotate missing break in switch for coverity
    
    Coverity issue 23362

diff --git a/src/TextClass.cpp b/src/TextClass.cpp
index a729fb5..b2b42f5 100644
--- a/src/TextClass.cpp
+++ b/src/TextClass.cpp
@@ -751,6 +751,7 @@ TextClass::ReturnValues TextClass::read(Lexer & lexrc, 
ReadType rt)
 
                case TC_IFCOUNTER:
                        ifcounter = true;
+                       // fall through
                case TC_COUNTER:
                        if (lexrc.next()) {
                                docstring const name = lexrc.getDocString();