return fElementNameAndScopeToElementDeclIndexMapping.get(-1, localpartIndex, scopeIndex);
return fElementNameAndScopeToElementDeclIndexMapping.get(StringPool.EMPTY_STRING, localpartIndex, scopeIndex);
    public int getElementDeclIndex(int localpartIndex, int scopeIndex) {        if ( localpartIndex > -1 && scopeIndex >-2 ) {            return fElementNameAndScopeToElementDeclIndexMapping.get(-1, localpartIndex, scopeIndex);        }        return -1;    }