[dartdevc] Properly encode Windows-style paths and paths with spaces for source maps

Change-Id: I32a28d7327a35c245a67343c91fdc74d6026d810
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/108503
Commit-Queue: Mark Zhou <markzipan@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>

pkg/dev_compiler/bin/dartdevc.dart

@@ -56,7 +56,7 @@ class _CompilerWorker extends AsyncWorkerLoop {
     /// Build a map of uris to digests.
     final inputDigests = <Uri, List<int>>{};
     for (var input in request.inputs) {
-      inputDigests[Uri.base.resolve(input.path)] = input.digest;
+      inputDigests[sourcePathToUri(input.path)] = input.digest;
     }
 
     lastResult = await runZoned(

pkg/dev_compiler/lib/src/compiler/shared_command.dart

@@ -369,7 +369,7 @@ Map placeSourceMap(Map sourceMap, String sourceMapPath,
     }
 
     // Convert to a local file path if it's not.
-    sourcePath = path.absolute(path.fromUri(uri));
+    sourcePath = sourcePathToUri(path.absolute(path.fromUri(uri))).path;
 
     // Allow bazel mappings to override.
     var match = bazelMappings[sourcePath];

pkg/front_end/lib/src/api_unstable/ddc.dart

@@ -150,7 +150,7 @@ Future<InitializedCompilerState> initializeIncrementalCompiler(
       oldState?.workerInputCache ?? new Map<Uri, WorkerInputComponent>();
   var sdkDigest = workerInputDigests[sdkSummary];
   if (sdkDigest == null) {
-    throw new StateError("Expected to get sdk digest at $cachedSdkInput");
+    throw new StateError("Expected to get sdk digest at $sdkSummary");
   }
 
   cachedSdkInput = workerInputCache[sdkSummary];

utils/bazel/kernel_worker.dart

@@ -372,5 +372,7 @@ class DevCompilerSummaryTarget extends DevCompilerTarget {
 
 Uri _toUri(String uriString) {
   if (uriString == null) return null;
-  return Uri.base.resolve(uriString);
+  // Windows-style paths use '\', so convert them to '/' in case they've been
+  // concatenated with Unix-style paths.
+  return Uri.base.resolve(uriString.replaceAll("\\", "/"));
 }