VCS: Offer to save-all before commit

Task-number: QTCREATORBUG-3857
Change-Id: I3ff3d90803eec4134b9da4af5567753ad7bffafb
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/perforce/perforceplugin.cpp

@@ -556,6 +556,8 @@ void PerforcePlugin::printOpenedFileList()
 
 void PerforcePlugin::startSubmitProject()
 {
+    if (!promptBeforeCommit())
+        return;
 
     if (raiseSubmitEditor())
         return;
@@ -1225,6 +1227,11 @@ void PerforceDiffConfig::triggerReRun()
     emit reRunDiff(effectiveParameters);
 }
 
+QString PerforcePlugin::commitDisplayName() const
+{
+    return tr("submit", "\"commit\" action for perforce");
+}
+
 void PerforcePlugin::p4Diff(const QString &workingDir, const QStringList &files)
 {
     PerforceDiffParameters p;