Wind.compileBlock method for compile a whole code block

[JeffreyZhao]

Usage:

Jscex.compileBlock(options /* or name */, function () {
    /* code block */
});

The name would be used in "//@ sourceURL".

Assign a better name for generated function:

• Use the function name if it's not a anonymous method.
• Use the Jason name if it's created like this: myFunc: eval(...)
• Use the variable name if it's assigned to a variable: var myFunc = eval(...) or myFunc = eval(...)
• Use the field name if it's assigned to a field name: a.myFunc = eval(...)