Move inlined type checking code to new compiler ia32. Sharing more and more code between ia32/x64 (…

runtime/vm/assembler_ia32.cc

Index: runtime/vm/assembler_ia32.cc
===================================================================
--- runtime/vm/assembler_ia32.cc	(revision 8286)
+++ runtime/vm/assembler_ia32.cc	(working copy)
@@ -1578,6 +1578,16 @@
 }
 
 
+void Assembler::LoadClassById(Register result, Register class_id) {
+  ASSERT(result != class_id);
+  movl(result, FieldAddress(CTX, Context::isolate_offset()));
+  const intptr_t table_offset_in_isolate =
+      Isolate::class_table_offset() + ClassTable::table_offset();
+  movl(result, Address(result, table_offset_in_isolate));
+  movl(result, Address(result, class_id, TIMES_4, 0));
+}
+
+
 void Assembler::LoadClass(Register result,
                           Register object,
                           Register scratch) {