Should not fail if breakpoint's file is incorrect

Author: os97673

ChangeLog.md

@@ -1,4 +1,9 @@
-## [0.4.23.beta9](https://github.com/ruby-debug/ruby-debug-ide/compare/v0.4.23.beta9...v0.4.23.beta10)
+## [0.4.23.beta11](https://github.com/ruby-debug/ruby-debug-ide/compare/v0.4.23.beta10...v0.4.23.beta11)
+
+* adding breakpoint in non-existing file should not break debugger
+  [RUBY-15873](https://youtrack.jetbrains.com/issue/RUBY-15873)
+
+## [0.4.23.beta10](https://github.com/ruby-debug/ruby-debug-ide/compare/v0.4.23.beta9...v0.4.23.beta10)
 
 * fixed problem with printing hashes [RUBY-15804](https://youtrack.jetbrains.com/issue/RUBY-15804)
 

lib/ruby-debug-ide/commands/breakpoints.rb

@@ -70,7 +70,7 @@ def realpath(filename)
         if (RUBY_VERSION < '1.9') || (RbConfig::CONFIG['host_os'] =~ /mswin/)
           filename
         else
-          File.realpath(filename)
+          File.realpath(filename) rescue filename
         end
       end
   end

lib/ruby-debug-ide/version.rb

@@ -1,3 +1,3 @@
 module Debugger
-  IDE_VERSION='0.4.23.beta10'
+  IDE_VERSION='0.4.23.beta11'
 end