Bug 92563 [content assist] Warm code assist performance for many types
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/ExperimentalProposal.java
fSelectedRegion= new Region(baseOffset + replacementString.length(), 0);
	}
	private String computeReplacementString(int baseOffset, int[] offsets, int[] lengths, IDocument document) {
		StringBuffer buffer= new StringBuffer(getReplacementString());
		int count= fParameterNames.length;
		buffer.append('(');
		for (int i= 0; i != count; i++) {
			if (i != 0)
				buffer.append(", "); 
			offsets[i]= buffer.length();
			buffer.append(fParameterNames[i]);
			lengths[i]= buffer.length() - offsets[i];
		}
		buffer.append(')');
		return buffer.toString();
	}
	/**
	 * Returns the currently active java editor, or <code>null</code> if it
	 * cannot be determined.
	 *
	 * @return  the currently active java editor, or <code>null</code>
	 */
	private JavaEditor getJavaEditor() {
		IEditorPart part= JavaPlugin.getActivePage().getActiveEditor();
		if (part instanceof JavaEditor)
			return (JavaEditor) part;
		else
			return null;
	}
	/*