Fix lazy deoptimization from deferred code.

runtime/vm/instructions_arm.cc

Index: runtime/vm/instructions_arm.cc
diff --git a/runtime/vm/instructions_arm.cc b/runtime/vm/instructions_arm.cc
index 1533a20391accad78729da4d64c6158abb1e0f21..eec6cfe364b93941850e62d2e2decda91b765c6e 100644
--- a/runtime/vm/instructions_arm.cc
+++ b/runtime/vm/instructions_arm.cc
@@ -32,16 +32,20 @@ CallPattern::CallPattern(uword pc, const Code& code)
 }
 
 
-int CallPattern::DeoptCallPatternLengthInBytes() {
+int CallPattern::DeoptCallPatternLengthInInstructions() {
   const ARMVersion version = TargetCPUFeatures::arm_version();
   if ((version == ARMv5TE) || (version == ARMv6)) {
-    return 5 * Instr::kInstrSize;
+    return 5;
   } else {
     ASSERT(version == ARMv7);
-    return 3 * Instr::kInstrSize;
+    return 3;
   }
 }
 
+int CallPattern::DeoptCallPatternLengthInBytes() {
+  return DeoptCallPatternLengthInInstructions() * Instr::kInstrSize;
+}
+
 
 NativeCallPattern::NativeCallPattern(uword pc, const Code& code)
     : object_pool_(ObjectPool::Handle(code.GetObjectPool())),