[ddc] Add caching of ground type RTI objects in a module-local type table.

Change-Id: Ifcc8f5da277207bbb228ef30ca47d1ec42a67eb5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/429180
Reviewed-by: Mark Zhou <[email protected]>
Commit-Queue: Nate Biggs <[email protected]>

Author: natebiggs

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

@@ -3347,10 +3347,15 @@ class ProgramCompiler extends ComputeOnceConstantVisitor<js_ast.Expression>
         DDCTypeEnvironment environment, String recipe) {
       switch (environment) {
         case EmptyTypeEnvironment():
-          return js.call('#._Universe.eval(#, "$recipe", true)', [
-            _emitLibraryName(_rtiLibrary),
-            _runtimeCall('typeUniverse'),
-          ]);
+          // Cache ground types in the type table for fast lookup. The table will
+          // lazily lookup the RTI object on first access and then replace the
+          // lazy getter with the initialized RTI object.
+          return _typeTable.nameType(
+              type,
+              js.call('#._Universe.eval(#, "$recipe", true)', [
+                _emitLibraryName(_rtiLibrary),
+                _runtimeCall('typeUniverse'),
+              ]));
         case BindingTypeEnvironment():
           js_ast.Expression env;
           if (environment.isSingleTypeParameter) {

pkg/dev_compiler/lib/src/kernel/compiler_new.dart

@@ -3830,10 +3830,15 @@ class LibraryCompiler extends ComputeOnceConstantVisitor<js_ast.Expression>
         DDCTypeEnvironment environment, String recipe) {
       switch (environment) {
         case EmptyTypeEnvironment():
-          return js.call('#._Universe.eval(#, "$recipe", true)', [
-            _emitLibraryName(_rtiLibrary),
-            _runtimeCall('typeUniverse'),
-          ]);
+          // Cache ground types in the type table for fast lookup. The table will
+          // lazily lookup the RTI object on first access and then replace the
+          // lazy getter with the initialized RTI object.
+          return _typeTable.nameType(
+              type,
+              js.call('#._Universe.eval(#, "$recipe", true)', [
+                _emitLibraryName(_rtiLibrary),
+                _runtimeCall('typeUniverse'),
+              ]));
         case BindingTypeEnvironment():
           js_ast.Expression env;
           if (environment.isSingleTypeParameter) {

sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart

@@ -1101,7 +1101,7 @@ const_(obj) => JS('', '''(() => {
   return $obj;
 })()''');
 
-constFn(x) => JS('', '() => x');
+constFn(x) => JS('', '() => #', x);
 
 /// Gets the extension symbol given a member [name].
 ///