[LyX/master] Fix stmaryrd operators with limits (bug 9458)

[Georg Baum]

commit 5ee6172b7b203a5fd019b55e7f71b454be763139
Author: Georg Baum <b...@lyx.org>
Date:   Fri Mar 13 18:34:39 2015 +0100

    Fix stmaryrd operators with limits (bug 9458)
    
    LyX did not display the limits of the big math operators defined by
    stmaryrd.sty correctly. The reason for this was a missing check in
    InsetMathSymbol::metrics(), where it is hardcoded which symbols use display
    style limits and which symbols use inline limits. In an ideal world this
    information would be contained explicitly in lib/symbols.
    
    This should go to branch as well.

diff --git a/src/mathed/InsetMathSymbol.cpp b/src/mathed/InsetMathSymbol.cpp
index 0bd61d9..8b2d1a2 100644
--- a/src/mathed/InsetMathSymbol.cpp
+++ b/src/mathed/InsetMathSymbol.cpp
@@ -87,7 +87,8 @@ void InsetMathSymbol::metrics(MetricsInfo & mi, Dimension & 
dim) const
        scriptable_ = false;
        if (mi.base.style == LM_ST_DISPLAY)
                if (sym_->inset == "cmex" || sym_->inset == "esint" ||
-                   sym_->extra == "funclim")
+                   sym_->extra == "funclim" ||
+                   (sym_->inset == "stmry" && sym_->extra == "mathop"))
                        scriptable_ = true;
 }
 
@@ -144,7 +145,8 @@ bool InsetMathSymbol::takesLimits() const
                sym_->inset == "cmex" ||
                sym_->inset == "lyxboldsymb" ||
                sym_->inset == "esint" ||
-               sym_->extra == "funclim";
+               sym_->extra == "funclim" ||
+               (sym_->inset == "stmry" && sym_->extra == "mathop");
 }