Tokenizer::varId: Fixed wrong varid for shadow types with same names as class members
Library: Allow loading xml data from memory
value flow: assume that value of global const variable is not changed
value flow: Readded safety check that tok->astOperand1() is not NULL
value flow: skip scopes that don't contain variable
value flow: stop checking global variable when going out of function scope
test1
value flow: improved handling of for loops
value flow: fix segfault if var is null