Flush stream more often to help figure out where the mystery crash

originates.
(cherry picked from commit 5536b0c7fe)

src/Paragraph.cpp

@@ -1669,6 +1669,9 @@ void Paragraph::write(ostream & os, BufferParams const & bparams,
 					os << "\\begin_inset ";
 					inset->write(os);
 					os << "\n\\end_inset\n\n";
+					// FIXME This can be removed again once the mystery
+					// crash has been resolved.
+					os << flush;
 					column = 0;
 				}
 			}
@@ -1706,6 +1709,9 @@ void Paragraph::write(ostream & os, BufferParams const & bparams,
 
 	flushString(os, write_buffer);
 	os << "\n\\end_layout\n";
+	// FIXME This can be removed again once the mystery
+	// crash has been resolved.
+	os << flush;
 }
 
 

src/insets/InsetTabular.cpp

@@ -1517,6 +1517,9 @@ void Tabular::write(ostream & os) const
 			cell_info[r][c].inset->write(os);
 			os << "\n\\end_inset\n"
 			   << "</cell>\n";
+			// FIXME This can be removed again once the mystery
+			// crash has been resolved.
+			os << flush;
 		}
 		os << "</row>\n";
 	}

status.21x

@@ -32,6 +32,9 @@ What's new
   filename (tmp-oldfile.lyx) and only deletes the original file once the
   new file has successfully been written. 
 
+- We now flush the output stream more frequently, as a temporary measure
+  to help us gather information about the crash mentioned above.
+
 
 * TEX2LYX IMPROVEMENTS