Provide file & type comments for newly created compilation units

[rgrunber]

This works from the client side when creating a new file, but it never did when creating a compilation unit from a code action.

• Use the file & type comments (java.templates.typeComment &
  java.templates.fileHeader) settings from the client to construct new
  compilation units
• Initialize the "newtype" template which will use the file & type
  comment template values

Signed-off-by: Roland Grunberg [email protected]

[rgrunber]

@snjeza , do you know if there's an easy way to test this ? It's not enough to just set the preferences prior to running. It's the underlying code template store (eg. JavaManipulation.getCodeTemplateStore() that needs to be updated.

[snjeza]

@rgrunber you may want to take a look at https://github.com/eclipse/eclipse.jdt.ls/blob/master/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/preferences/PreferenceManagerTest.java#L151

[rgrunber]

Thanks. I was trying to write a test in UnresolvedTypesQuickFixTest, but maybe it makes more sense to do it where you suggest. Also fixing the existing failures.