[patch] fix bug 4308 for LyX 1.5.3

[Uwe Stöhr]

Attached a patch for bug 4308
http://bugzilla.lyx.org/show_bug.cgi?id=4308
for LyX 1.5.3.

Jürgen, OK?

regards Uwe

Index: InsetMathBinom.cpp
===================================================================
--- InsetMathBinom.cpp	(revision 21229)
+++ InsetMathBinom.cpp	(working copy)
@@ -47,7 +47,7 @@
 
 bool InsetMathBinom::metrics(MetricsInfo & mi, Dimension & dim) const
 {
-	ScriptChanger dummy(mi.base);
+	FracChanger dummy(mi.base);
 	cell(0).metrics(mi);
 	cell(1).metrics(mi);
 	dim.asc = cell(0).height() + 4 + 5;
@@ -63,7 +63,7 @@
 void InsetMathBinom::draw(PainterInfo & pi, int x, int y) const
 {
 	int m = x + dim_.width() / 2;
-	ScriptChanger dummy(pi.base);
+	FracChanger dummy(pi.base);
 	cell(0).draw(pi, m - cell(0).width() / 2, y - cell(0).descent() - 3 - 5);
 	cell(1).draw(pi, m - cell(1).width() / 2, y + cell(1).ascent()  + 3 - 5);
 	mathed_draw_deco(pi, x, y - dim_.ascent(), dw(), dim_.height(), from_ascii("("));