Error if there is no this in a call requiring this. Fixes: nocompile/b/bug_type_308_G,H nocompile/bug_e2ir_814 nocompile/i/inline_18_A,B nocompile/inline_07 nocompile/static_09

module bug2;
struct Vec { Vec barf() { return Vec(); } }
class test { this(Vec whee) { } }
void main() { Vec whee; new test(whee.barf()); }