[counters] Add counter scopes for the Compiler::Analyze phases

src/parsing/rewriter.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/parsing/rewriter.h"
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/parsing/parse-info.h"
 #include "src/parsing/parser.h"
@@ skipping 336 matching lines @@
 // Declarations are never visited.
 #define DEF_VISIT(type) \
   void Processor::Visit##type(type* expr) { UNREACHABLE(); }
 DECLARATION_NODE_LIST(DEF_VISIT)
 #undef DEF_VISIT
 
 
 // Assumes code has been parsed.  Mutates the AST, so the AST should not
 // continue to be used in the case of failure.
 bool Rewriter::Rewrite(ParseInfo* info) {
+  RuntimeCallTimerScope runtimeTimer(
+      info->isolate(), &RuntimeCallStats::CompileRewriteReturnResult);

[rmcilroy, 2017/01/09 13:55:26]

nit - would it work as just CompileRewriteAst or something? (not sure what
ReturnResult means here).

   FunctionLiteral* function = info->literal();
   DCHECK_NOT_NULL(function);
   Scope* scope = function->scope();
   DCHECK_NOT_NULL(scope);
   if (!scope->is_script_scope() && !scope->is_eval_scope()) return true;
   DeclarationScope* closure_scope = scope->GetClosureScope();
 
   ZoneList<Statement*>* body = function->body();
   if (!body->is_empty()) {
     Variable* result = closure_scope->NewTemporary(
@@ skipping 43 matching lines @@
           processor.SetResult(undef), expr->position());
       body->Add(completion, factory->zone());
     }
   }
   return true;
 }
 
 
 }  // namespace internal
 }  // namespace v8