fASTRoot= AST.parseCompilationUnit(fCompilationUnit, true);
fASTRoot= AST.parsePartialCompilationUnit(fCompilationUnit, fOffset, true);
	public CompilationUnit getASTRoot() {		if (fASTRoot == null) {			fASTRoot= AST.parseCompilationUnit(fCompilationUnit, true);		}		return fASTRoot;	}