Method renaming not working in @CompileStatic Groovy enum

[mauromol]

This was GRECLIPSE-1538 and very similar to #389, but having @CompileStatic annotation.

Consider the following:

package b; 

import groovy.transform.CompileStatic

@CompileStatic
enum R { 
	A() { 
		@Override 
		String getFoo() { 
			
		} 
	}, 
	B() {
		 @Override 
		 String getFoo() { 
			 "bar" 
		 } 
	} 
	
	String getFoo() { 
		
	} 
} 

Now, select getFoo in either A or B definition and hit Ctrl+Shift+R to rename. Greclipse complains that "Cannot refactor on current selection".

Now try to do the same on the base declaration of getFoo() and change getFoo() into getBar(): the corresponding overridings in A and B are not updated, hence a compilation error is produced.

[eric-milles]

ready to test

[mauromol]

Tested with 2.9.2.xx-201711162156-e46. Now refactoring from the base getFoo() works. The behaviour is equal to the non-@CompileStatic case, hence #389 applies too.