Revert "Change SDK/DartEditor versioning scheme to semantic versions."

dart/sdk/lib/_internal/pub/test/version_solver_test.dart

 // 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.
 
 library pub_upgrade_test;
 
 import 'dart:async';
 
 import 'package:unittest/unittest.dart';
 
@@ skipping 776 matching lines @@
     'foo 4.0.0': {'bar': '4.0.0'},
     'bar 1.0.0': {'sdk': goodVersion },
     'bar 2.0.0': {'sdk': goodVersion },
     'bar 3.0.0': {'sdk': badVersion },
     'bar 4.0.0': {'sdk': badVersion }
   }, result: {
     'myapp from root': '0.0.0',
     'foo': '2.0.0',
     'bar': '2.0.0'
   }, maxTries: 3);
+
+  testResolve('ignores SDK constraints on bleeding edge', {
+    'myapp 0.0.0': {'sdk': badVersion }
+  }, result: {
+    'myapp from root': '0.0.0'
+  }, useBleedingEdgeSdkVersion: true);
 }
 
 void prerelease() {
   testResolve('prefer stable versions over unstable', {
     'myapp 0.0.0': {
       'a': 'any'
     },
     'a 1.0.0': {},
     'a 1.1.0-dev': {},
     'a 2.0.0-dev': {},
@@ skipping 169 matching lines @@
   }, overrides: {
     'foo': 'any'
   }, result: {
     'myapp from root': '0.0.0',
     'foo': '0.0.0'
   });
 }
 
 testResolve(String description, Map packages, {
     Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
-    int maxTries}) {
+    int maxTries, bool useBleedingEdgeSdkVersion}) {
   _testResolve(test, description, packages, lockfile: lockfile,
-      overrides: overrides, result: result, error: error, maxTries: maxTries);
+      overrides: overrides, result: result, error: error, maxTries: maxTries,
+      useBleedingEdgeSdkVersion: useBleedingEdgeSdkVersion);
 }
 
 solo_testResolve(String description, Map packages, {
     Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
-    int maxTries}) {
+    int maxTries, bool useBleedingEdgeSdkVersion}) {
   log.showSolver();
   _testResolve(solo_test, description, packages, lockfile: lockfile,
-      overrides: overrides, result: result, error: error, maxTries: maxTries);
+      overrides: overrides, result: result, error: error, maxTries: maxTries,
+      useBleedingEdgeSdkVersion: useBleedingEdgeSdkVersion);
 }
 
 _testResolve(void testFn(String description, Function body),
     String description, Map packages, {
     Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
-    int maxTries}) {
+    int maxTries, bool useBleedingEdgeSdkVersion}) {
   if (maxTries == null) maxTries = 1;
+  if (useBleedingEdgeSdkVersion == null) useBleedingEdgeSdkVersion = false;
 
   testFn(description, () {
     var cache = new SystemCache('.');
     source1 = new MockSource('mock1');
     source2 = new MockSource('mock2');
     cache.register(source1);
     cache.register(source2);
     cache.sources.setDefault(source1.name);
 
     // Build the test package graph.
@@ skipping 26 matching lines @@
     // Parse the lockfile.
     var realLockFile = new LockFile.empty();
     if (lockfile != null) {
       lockfile.forEach((name, version) {
         version = new Version.parse(version);
         realLockFile.packages[name] =
             new PackageId(name, source1.name, version, name);
       });
     }
 
+    // Make a version number like the continuous build's version.
+    var previousVersion = sdk.version;
+    if (useBleedingEdgeSdkVersion) {
+      sdk.version = new Version(0, 1, 2, build: '0_r12345_juser');
+    }
+
     // Resolve the versions.
     var future = resolveVersions(cache.sources, root, lockFile: realLockFile);
 
     var matcher;
     if (result != null) {
       matcher = new SolveSuccessMatcher(result, maxTries);
     } else if (error != null) {
       matcher = error(maxTries);
     }
 
+    future = future.whenComplete(() {
+      if (useBleedingEdgeSdkVersion) {
+        sdk.version = previousVersion;
+      }
+    });
+
     expect(future, completion(matcher));
   });
 }
 
 typedef SolveFailMatcher FailMatcherBuilder(int maxTries);
 
 FailMatcherBuilder noVersion(List<String> packages) {
   return (maxTries) => new SolveFailMatcher(packages, maxTries,
       NoVersionException);
 }
@@ skipping 315 matching lines @@
   }
 
   var source = "mock1";
   if (match[7] != null) {
     source = match[7];
     if (source == "root") source = null;
   }
 
   return new PackageId(name, source, parsedVersion, description);
 }