Implement Double.{toString, toStringAsExponential, toStringAsPrecision}

tests/language/language.status

 # 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.
 
 # This directory contains tests that are intended to show the
 # current state of the language.
 
 # In order to maintain maximum test coverage for all builds,
 # please use the following procedure to mark a test
 # failed on architectures other than the one you are working on.
@@ skipping 95 matching lines @@
 CallThroughNullGetterTest: Fail # Throw ObjectNotClosure instead of NullPointerException.
 CharEscapeTest: Fail
 ConstInit6NegativeTest: Fail       # Issue 811
 ConstObjectsAreImmutableTest: Fail  # Bug 5202940
 Constructor2Test: Fail       # Issue 255
 Constructor3Test: Fail       # Issue 257
 Constructor4Test: Fail       # Issue 286
 Constructor5Test: Fail       # Issue 8440015 + 'super' initializer does not parse
 Constructor6Test: Fail       # Issue 8440015 + 'super' initializer does not parse
 DefaultFactoryLibraryTest: Fail          # Issue 514
+DoubleToString: Fail         # Prints "3" instead of "3.0" (since it doesn't distinguish ints and doubles).
 DivByZeroTest: Fail          # Bug 5184183
 DynamicTest: Fail            # Bug 5527899.
 ExampleConstructorTest: Fail # Bug 4205742.
 ExpectTest: Fail             # Missing extensions to class Expect.
 For2Test: Fail               # Bug 4995208.
 FunctionTypeAliasNegativeTest: Fail  # Bug 5231617.
 GenericParameterizedExtendsTest: Skip  # Bug 5392297
 GenericTest: Fail            # Bug 5393302 (missing call to super constructor)
 GetterClosureExecutionOrderTest: Fail # Bug 5481595
 IsObjectTest: Skip # Hasn't be tested on DartC yet
@@ skipping 66 matching lines @@
 *FrogNegativeTest: Skip
 
 
 [ $component == dartium ]
 # TODO: These need to be retriaged.
 RichardsTest: Fail
 TypedMessageTest: Fail # Bug 5246195
 
 
 [ $component == frog ]
-ToStringAsFixedTest: Fail # fails due to rounding in constant propagation
+DoubleToStringAsFixedTest: Fail # fails due to rounding in constant propagation and -0.0.
 
 [ $component == frogsh ||  $component == frog || ($component == webdriver && ($browser == chrome || $browser == ff || $browser == safari)) || $component == frogium ]
 Factory3Test: Fail # Issue 417
 CallThroughNullGetterTest: Fail # Throw ObjectNotClosure instead of NullPointerException.
 ExtendTypeParameterNegativeTest: Skip # Issue 886
 ExtendTypeParameter2NegativeTest: Skip # Issue 886
 ImplementTypeParameterNegativeTest: Skip # Issue 887
 FactoryImplementationTest: Fail # Issue 523
 PseudoKWTest: Fail  # Issue 356
 NamingTest: Fail    # Issue 356
 DuplicateImplementsTest: Skip   # Issue 976
+DoubleToString: Fail     # Prints "3" instead of "3.0" (since it doesn't distinguish ints and doubles).
 
 SavannahTest: Skip # TODO(jimhug): Seems flaky on some configs - investigate.
 
 # VM or DartC specific tests not to be run by Frog. See language.status
 *VMTest: Skip
 *VMNegativeTest: Skip
 *DartcTest: Skip
 *DartcNegativeTest: Skip
 # Currently, these patterns skip three tests:
 # MathVMTest - correctly skipped as this relies on VM guarantees
@@ skipping 109 matching lines @@
 BlockScopeTest: Fail
 ClosureBreak1Test: Fail
 ClosureBreakTest: Fail
 ExecuteFinally7Test: Fail
 FunctionLiteralsTest: Fail
 ImplicitClosure1Test: Fail
 ImplicitClosureTest: Fail
 MethodBindingTest: Fail
 Prefix15Test: Fail
 StringConcatTest: Fail
-ToStringAsFixedTest: Pass,Fail # Passes in 32-bit Safari, but fails in 64-bit Issue #1220
+DoubleToStringAsFixedTest: Pass,Fail # Passes in 32-bit Safari, but fails in 64-bit Issue #1220
 
 [ $component == webdriver && $browser == ff ]
 NamingTest: Fail
 StackOverflowTest: Fail
 StringConcatTest: Fail
-ToStringAsFixedTest: Fail
+DoubleToStringAsFixedTest: Fail
 
 [ $component == webdriver && $browser == ie && ($system == linux || $system == mac) ]
 *: Skip
 
 [ $component == webdriver && $browser == safari && ($system == linux || $system == windows) ]
 *: Skip
 
 
 [ ($component == frogsh ||  $component == frog || $component == frogium) && $unchecked ]
 PrivateMemberTest/01: Fail # test seems bad - see issue #353
@@ skipping 18 matching lines @@
 # these tests are inconsistent in frogium and frogsh-node, investigate
 StaticField1RunNegativeTest: Pass # but error is not correct
 StaticField2RunNegativeTest: Pass # but error is not correct
 
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == arm ]
 *: Skip