[LyX/master] Allow cloned buffers to give alerts in runLaTeX()

[Scott Kostyshak]

commit f74b2b79c7925454ba01b42bbd30c64f0ab30d31
Author: Scott Kostyshak <skost...@lyx.org>
Date:   Fri Feb 20 17:45:36 2015 -0500

    Allow cloned buffers to give alerts in runLaTeX()
    
    This was disabled in 2009 in bea0925f but it is now safe.
    
    From Richard:
    "I am pretty sure that all the work that Peter Kümmel did with the
    InGuiThread classes dealt with this issue."

diff --git a/src/Converter.cpp b/src/Converter.cpp
index a00b0f4..b78ee90 100644
--- a/src/Converter.cpp
+++ b/src/Converter.cpp
@@ -654,13 +654,13 @@ bool Converters::runLaTeX(Buffer const & buffer, string 
const & command,
                buffer.bufferErrors(terr, errorList);
 
        // check return value from latex.run().
-       if ((result & LaTeX::NO_LOGFILE) && !buffer.isClone()) {
+       if (result & LaTeX::NO_LOGFILE) {
                docstring const str =
                        bformat(_("LaTeX did not run successfully. "
                                               "Additionally, LyX could not 
locate "
                                               "the LaTeX log %1$s."), 
from_utf8(name));
                Alert::error(_("LaTeX failed"), str);
-       } else if ((result & LaTeX::NO_OUTPUT) && !buffer.isClone()) {
+       } else if (result & LaTeX::NO_OUTPUT) {
                Alert::warning(_("Output is empty"),
                               _("No output file was generated."));
        }