fix indent
fix conflict
Merge remote-tracking branch 'upstream/master' into LeafJS
add local variable counter
fix conflict
rename visitor method as well as new node name.
fix conflict
fix conflict
fix conflict
fix LeafJS to pass test
several fix
Merge pull request #6 from tetsurom/LeafJS

LeafJS update
fix ASTInterpreter
fix String Literal Tokenizer
fix TypedNode.Next bug
fix Acceptor interface
Merge commit '798514fa32cc790f9caacd11d981b4f28f3c57bc'
pass	testReturnConst, testAddOne
		testIf, testMethodCall
		testTopLevelExpr