Description of problem:
When building 'From accumulate' conditional element the result of the accumulation is usually Number, however the pattern editor for the accumulation result only offers imported types.

Of course Number could be explicitely imported, but importing from java.lang package is redundant. Moreover there is inconsistency with pattern editor for 'From collect' which offers List, Set and Collection (java.util) although they are not imported

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. in Guided editor, add 'From Accumulate' condition
2. click 'click to add pattern...' *above* the 'From Accumulate' keywords
  
Actual results:
Number type is missing in the selection list

Expected results:
Number should be offered

Additional info:
Having Number available is very handy and it used to work in Guvnor 5.1.