Remove isolate parameter when allocating handles

runtime/vm/coverage_test.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/coverage.h"
 #include "vm/dart_api_impl.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
@@ skipping 21 matching lines @@
  private:
   const Function& func_;
 };
 
 
 TEST_CASE(Coverage_Empty) {
   const char* kScript =
       "main() {\n"
       "}";
 
-  Isolate* isolate = Isolate::Current();
   Library& lib = Library::Handle();
   lib ^= ExecuteScript(kScript);
   ASSERT(!lib.IsNull());
 
   JSONStream js;
-  CodeCoverage::PrintJSON(isolate, &js, NULL, false);
+  CodeCoverage::PrintJSON(thread, &js, NULL, false);
 
   char buf[1024];
   OS::SNPrint(buf, sizeof(buf),
       "{\"source\":\"test-lib\",\"script\":{\"type\":\"@Script\","
       "\"fixedId\":true,\"id\":\"libraries\\/%" Pd  "\\/scripts\\/test-lib\","
       "\"uri\":\"test-lib\","
       "\"_kind\":\"script\"},\"hits\":[]}", lib.index());
   EXPECT_SUBSTRING(buf, js.ToCString());
 }
 
 
 TEST_CASE(Coverage_MainWithClass) {
   const char* kScript =
       "class Foo {\n"
       "  var x;\n"
       "  Foo(this.x);\n"
       "  bar() {\n"
       "    x = x * x;\n"
       "    x = x / 13;\n"
       "  }\n"
       "}\n"
       "main() {\n"
       "  var foo = new Foo(7);\n"
       "  foo.bar();\n"
       "}\n";
 
-  Isolate* isolate = Isolate::Current();
   Library& lib = Library::Handle();
   lib ^= ExecuteScript(kScript);
   ASSERT(!lib.IsNull());
 
   JSONStream js;
-  CodeCoverage::PrintJSON(isolate, &js, NULL, false);
+  CodeCoverage::PrintJSON(thread, &js, NULL, false);
 
   char buf[1024];
   // Coverage data is printed per class, i.e., there should be two sections
   // for test-lib in the JSON data.
 
   // Data for the actual class Foo.
   OS::SNPrint(buf, sizeof(buf),
       "{\"source\":\"test-lib\",\"script\":{\"type\":\"@Script\","
       "\"fixedId\":true,\"id\":\"libraries\\/%" Pd "\\/scripts\\/test-lib\","
       "\"uri\":\"test-lib\","
@@ skipping 16 matching lines @@
       "  var x;\n"
       "  var y;\n"
       "  Foo(this.x);\n"
       "  Foo.other(this.x, this.y);\n"
       "  Foo.yetAnother();\n"
       "}\n"
       "main() {\n"
       "  var foo = new Foo(7);\n"
       "}\n";
 
-  Isolate* isolate = Isolate::Current();
   Library& lib = Library::Handle();
   lib ^= ExecuteScript(kScript);
   ASSERT(!lib.IsNull());
   const Class& cls = Class::Handle(
       lib.LookupClass(String::Handle(String::New("Foo"))));
   ASSERT(!cls.IsNull());
   const Function& func = Function::Handle(
       cls.LookupFunction(String::Handle(String::New("Foo.yetAnother"))));
   ASSERT(!func.IsNull());
 
   JSONStream js;
   FunctionCoverageFilter filter(func);
-  CodeCoverage::PrintJSON(isolate, &js, &filter, false);
+  CodeCoverage::PrintJSON(thread, &js, &filter, false);
   // Only expect coverage data for Foo.yetAnother() on line 6.
   char buf[1024];
   OS::SNPrint(buf, sizeof(buf),
       "{\"source\":\"test-lib\",\"script\":{\"type\":\"@Script\","
       "\"fixedId\":true,\"id\":\"libraries\\/%" Pd "\\/scripts\\/test-lib\","
       "\"uri\":\"test-lib\","
       "\"_kind\":\"script\"},\"hits\":[6,0]}", lib.index());
   EXPECT_SUBSTRING(buf, js.ToCString());
 }
 
 }  // namespace dart