Refactor _ByteDataView.[set|get]* methods to improve their performance.

runtime/vm/flow_graph_inliner.cc

Index: runtime/vm/flow_graph_inliner.cc
diff --git a/runtime/vm/flow_graph_inliner.cc b/runtime/vm/flow_graph_inliner.cc
index 2e8580a07f9de0640ee1735e9cc2c3e2632b3dea..60bdfaf026965d9a58f4b6af3ea070728ab2baf6 100644
--- a/runtime/vm/flow_graph_inliner.cc
+++ b/runtime/vm/flow_graph_inliner.cc
@@ -497,6 +497,9 @@ class CallSiteInliner : public ValueObject {
                       intptr_t instr_count,
                       intptr_t call_site_count,
                       intptr_t const_arg_count) {
+    if (FlowGraphInliner::AlwaysInline(callee)) {
+      return true;
+    }
     if (inlined_size_ > FLAG_inlining_caller_size_threshold) {
       // Prevent methods becoming humongous and thus slow to compile.
       return false;
@@ -519,9 +522,6 @@ class CallSiteInliner : public ValueObject {
         (instr_count <= FLAG_inlining_constant_arguments_min_size_threshold)) {
       return true;
     }
-    if (FlowGraphInliner::AlwaysInline(callee)) {
-      return true;
-    }
     return false;
   }