Add code size to CodeInfo.

This is in preparation of removing it from OatQuickMethodHeader.

Bug: 123510633
Test: m test-art-host-gtest
Test: ./art/test.py -b -r --host
Change-Id: I5c5adb4c040e329b81c1393aa1b80ee017729c8a
diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index 8333b32..886cabb 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -435,7 +435,7 @@
   // Finalize instructions in assember;
   Finalize(allocator);
 
-  GetStackMapStream()->EndMethod();
+  GetStackMapStream()->EndMethod(GetAssembler()->CodeSize());
 }
 
 void CodeGenerator::Finalize(CodeAllocator* allocator) {