Given a symbol that could be either a FuncDeclaration or
a function template, resolve it to a function symbol.
loc instantiation location
sc instantiation scope
tiargs initial list of template arguments
tthis if !NULL, the 'this' pointer argument
fargs arguments to function
flags 1: do not issue error message on no match, just return NULL
2: overloadResolve only
Given a symbol that could be either a FuncDeclaration or a function template, resolve it to a function symbol. loc instantiation location sc instantiation scope tiargs initial list of template arguments tthis if !NULL, the 'this' pointer argument fargs arguments to function flags 1: do not issue error message on no match, just return NULL 2: overloadResolve only