Added more firm visitors
Fixed some compile errors
example for an ExpressionVisitor-visit method
Added initial visit functions.
added CParsers ast2firm.c
Get node for constant integers.
Merge branch 'firm' of github.com:djrieger/mjplusplus into firm
Modified singleton pattern.
fixed some stuff, added some getters
getter for Integer string_value
fixed compile errors
Merge branch 'firm' of github.com:djrieger/mjplusplus into firm
Error fixing.
added getMode() and getType() functions; methodDeclaration should now be generic
added boolean visit and dummy createBooleanNode
Merge branch 'firm' of github.com:djrieger/mjplusplus into firm
getter for Arguments
Implemented method invocation.
Merge branch 'firm' of github.com:djrieger/mjplusplus into firm
modified visit-methodinvocation