public synchronized GFile lookup(GFile baseDir, String path, Comparator<String> nameComp) {
		try {
			return lookup(baseDir, path, false, nameComp);
		}
		catch (IOException e) {
			// shouldn't happen, fall thru
		}
		return null;
	}
Mirrors {@link GFileSystem#lookup(String)} interface, with additional parameters to
control the lookup.

@param baseDir optional starting directory to perform lookup
@param path path and filename of a file to find
@param nameComp optional {@link Comparator} that compares file names.  Suggested values are 
{@code String::compareTo} or {@code String::compareToIgnoreCase} or {@code null} (also exact).
@return {@link GFile} instance or null if no file was added to the index at that path
Ghidra/Features/Base/src/main/java/ghidra/formats/gfilesystem/FileSystemIndexHelper.java