[fasta] Add and correct even more offsets

pkg/front_end/lib/src/fasta/kernel/frontend_accessors.dart

Index: pkg/front_end/lib/src/fasta/kernel/frontend_accessors.dart
diff --git a/pkg/front_end/lib/src/fasta/kernel/frontend_accessors.dart b/pkg/front_end/lib/src/fasta/kernel/frontend_accessors.dart
index eea4554c4d0cf15d1c9673cd12ac9ba669764a58..91e81e4721a1f529f65134e7695105a21b76bdb8 100644
--- a/pkg/front_end/lib/src/fasta/kernel/frontend_accessors.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/frontend_accessors.dart
@@ -426,16 +426,18 @@ class SuperIndexAccessor extends Accessor {
 class StaticAccessor extends Accessor {
   Member readTarget;
   Member writeTarget;
+  int charOffset;
 
-  StaticAccessor(this.readTarget, this.writeTarget);
+  StaticAccessor(this.readTarget, this.writeTarget, this.charOffset);
 
   _makeRead() =>
-      readTarget == null ? makeInvalidRead() : new StaticGet(readTarget);
+      readTarget == null ? makeInvalidRead() : new StaticGet(readTarget)
+        ..fileOffset = charOffset;
 
   _makeWrite(Expression value, bool voidContext) {
     return writeTarget == null
         ? makeInvalidWrite(value)
-        : new StaticSet(writeTarget, value);
+        : new StaticSet(writeTarget, value)..fileOffset = charOffset;
   }
 }