* ast.c: Fix to raise `SyntaxError` when `RubyVM::AST.parse`
or `RubyVM::AST.parse_file` fail to parse input.
* test/ruby/test_ast.rb: Add test cases for invalid syntax.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63602 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ast.c: I created a new C source code file with tabs and spaces mixed
format by mistake. Currently we move to spaces only.
Surely we agreed not to batch update. But ast.c is a new
source code. So please forgive me to change the format before
many changes are committed this file.
I'm sorry about my mistake.
ref [Bug #14246]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e