[cfe] Use exhaustive switch in isSubtypeOf

This CL uses exhaustive switch statement instead of chained if statements in the implementation of isSubtypeOf. In addition to that, all of the individual methods for computing isSubtypeOf for specific pairs of DartTypes are inlined into the switch statement. Change-Id: I425e8d415d07767313c6f1ff796f7715e35f10bf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/382000 Commit-Queue: Chloe Stefantsova <[email protected]> Reviewed-by: Johnni Winther <[email protected]>
dart-lang · Aug 26, 2024 · a02427f · a02427f
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diff --git a/pkg/front_end/test/coverage_suite_expected.dart b/pkg/front_end/test/coverage_suite_expected.dart
@@ -505,7 +505,7 @@ const Map<String, ({int hitCount, int missCount})> _expect = {
   ),
   // 100.0%.
   "package:front_end/src/kernel/const_conditional_simplifier.dart": (
-    hitCount: 72,
+    hitCount: 95,
     missCount: 0,
   ),
   // 100.0%.