Control static type propagation with a flag in optimizing compiler.

runtime/vm/parser.cc

 // Copyright (c) 2012, 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/parser.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/compiler_stats.h"
@@ skipping 21 matching lines @@
 DEFINE_FLAG(bool, warn_legacy_map_literal, false,
             "Warning on legacy map literal syntax (single type argument)");
 
 static void CheckedModeHandler(bool value) {
   FLAG_enable_asserts = value;
   FLAG_enable_type_checks = value;
 }
 
 DEFINE_FLAG_HANDLER(CheckedModeHandler,
                     enable_checked_mode,
-                    "Enabled checked mode.");
+                    "Enable checked mode.");
 
 #if defined(DEBUG)
 
 class TraceParser : public ValueObject {
  public:
   TraceParser(intptr_t token_pos, const Script& script, const char* msg) {
     if (FLAG_trace_parser) {
       // Skips tracing of bootstrap libraries.
       if (script.HasSource()) {
         intptr_t line, column;
@@ skipping 9456 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart