Auto-complete on instance should not suggest static methods

[devinrsmith]

I added a new static method on io.deephaven.db.tables.Table. This is causing the following test to fail:

Condition not satisfied:

results.size() == 0
|       |      |
|       1      false
[
t = emptyTable(10)
u = t.of(]

	at io.deephaven.lang.completion.ChunkerCompletionHandlerTest.Methods on binding variables that were assigned a value from an emptyTable method returning Table will know it is a table(ChunkerCompletionHandlerTest.groovy:118)

From James: "there never used to be static methods on table, so I think it simply was not exercised properly"

           if (Modifier.isPublic(method.getModifiers())) {
                // TODO we'll likely want to pick between static or instance methods, based on calling scope.
                //   IDS-1517-19
                if (camelMatch(method.getName(), methodPrefix)) {
                    sorter.add(method.getName(), method);
                }
            }

Note: the property ChunkerCompleter.PROP_SUGGEST_STATIC_METHODS is only for statically imported static methods, and not relevant to this issue at hand on an instance.

[JamesXNelson]

Cool. @devinrsmith if it's too much trouble to mod the test, feel free to @Ignore("#875") the test so I can reenable it when I get to this one.