Move kernel baseline tests to front_end.

pkg/front_end/test/fasta/rasta/switch_execution_case_t02.dart.direct.expect

-library;
-import self as self;
-import "dart:core" as core;
-
-static method test(dynamic value) → dynamic {
-  dynamic result;
-  #L1:
-  switch(value) {
-    #L2:
-    case 1:
-      {
-        result = 1;
-        break #L1;
-      }
-    #L3:
-    case 2:
-      {
-        result = 2;
-        throw core::_fallThroughError();
-      }
-    #L4:
-    case 3:
-      {
-        result = 3;
-        throw core::_fallThroughError();
-      }
-    #L5:
-    default:
-      {
-        result = 4;
-      }
-  }
-  return result;
-}
-static method testEmptyCases(dynamic value) → dynamic {
-  dynamic result;
-  #L6:
-  switch(value) {
-    #L7:
-    case 1:
-    case 2:
-      {
-        result = 1;
-        throw core::_fallThroughError();
-      }
-    #L8:
-    case 3:
-    case 4:
-      {
-        result = 2;
-        break #L6;
-      }
-    #L9:
-    case 5:
-    case 6:
-    default:
-      {}
-  }
-  return result;
-}
-static method main() → dynamic {}