Match input operand count of BranchInstr with the input location count.

Match input operand count of BranchInstr with the input location count.

For now this is achieved by making the branch instruction push its
arguments itself in the case it performs an instance call.

Also remove the result location from the location summary of BranchInstr
in the instance call case since it does never produce a result.
Committed: https://code.google.com/p/dart/source/detail?r=10488

[Vyacheslav Egorov (Google), 2012-08-09 19:29:20]

lgtm

[srdjan, 2012-08-09 19:56:49]

DBC

https://chromiumcodereview.appspot.com/10823258/diff/1/vm/intermediate_langua...
File vm/intermediate_language_ia32.cc (right):

https://chromiumcodereview.appspot.com/10823258/diff/1/vm/intermediate_langua...
vm/intermediate_language_ia32.cc:2007: locs->set_in(1,
Location::RegisterLocation(ECX));
Why do you require EAX, ECX to hold inputs?

https://chromiumcodereview.appspot.com/10823258/diff/1/vm/intermediate_langua...
File vm/intermediate_language_x64.cc (right):

https://chromiumcodereview.appspot.com/10823258/diff/1/vm/intermediate_langua...
vm/intermediate_language_x64.cc:2013: locs->set_in(1,
Location::RegisterLocation(RCX));
ditto