0.88 - Significant tidying

Down to 61 'self compilation' errors.

• Don't force parameter type - allow parameters to be displaced in code
• Improve explicit generics for java 1.6 function args
• Cope (but not particularly well yet) with groovy invokedynamics.
• Fix issue where explicit classfile permissions are more generous than inner class permissions.
• Explicit cast if we're returning a generic place holder.
• Fix uneccessary redundant bracing
• Fix a precedence issue
• Check for correct overload calling POST erasure - means less explicit argument casting.
• Explicit final on loop iters, when forced by inner class usage
• Change placeholder binding collision policy
• Fix possible illegal rewrite of ternaries when de-inlining assignments
• Improve synthetic accessor rewriter.
• Feed back type information from detected loops
• Extract aggressive inlining of assignments, if it can no longer help simplifying code
• Tidy statics so we use simple name where possible
• Fix bad type on unused null argument
• Attempt to resolve any outstanding type clashes at scope discovery time