Minor cleanup based on profiler output of CompileParseFunction.

runtime/vm/parser.cc

Index: runtime/vm/parser.cc
diff --git a/runtime/vm/parser.cc b/runtime/vm/parser.cc
index ee0c2d98fd0a0ae48d608b063bbfc709b8b25555..1cc59ac84955a31f19b572bd8b5da81ac20a7aa1 100644
--- a/runtime/vm/parser.cc
+++ b/runtime/vm/parser.cc
@@ -364,10 +364,11 @@ void Parser::TryStack::AddNodeForFinallyInlining(AstNode* node) {
 Parser::Parser(const Script& script,
                const Library& library,
                TokenPosition token_pos)
-    : isolate_(Thread::Current()->isolate()),
-      thread_(Thread::Current()),
+    : thread_(Thread::Current()),
+      isolate_(thread()->isolate()),
       script_(Script::Handle(zone(), script.raw())),
-      tokens_iterator_(TokenStream::Handle(zone(), script.tokens()),
+      tokens_iterator_(zone(),
+                       TokenStream::Handle(zone(), script.tokens()),
                        token_pos),
       token_kind_(Token::kILLEGAL),
       current_block_(NULL),
@@ -395,10 +396,11 @@ Parser::Parser(const Script& script,
 Parser::Parser(const Script& script,
                ParsedFunction* parsed_function,
                TokenPosition token_pos)
-    : isolate_(Thread::Current()->isolate()),
-      thread_(Thread::Current()),
+    : thread_(Thread::Current()),
+      isolate_(thread()->isolate()),
       script_(Script::Handle(zone(), script.raw())),
-      tokens_iterator_(TokenStream::Handle(zone(), script.tokens()),
+      tokens_iterator_(zone(),
+                       TokenStream::Handle(zone(), script.tokens()),
                        token_pos),
       token_kind_(Token::kILLEGAL),
       current_block_(NULL),