canonicalize const

lib/runtime/dart/_internal.js

 var _internal;
 (function(exports) {
   'use strict';
   class EfficientLength extends core.Object {}
   let ListIterable$ = dart.generic(function(E) {
     class ListIterable extends collection.IterableBase$(E) {
       ListIterable() {
         super.IterableBase();
       }
       get [core.$iterator]() {
@@ skipping 492 matching lines @@
     return ExpandIterable;
   });
   let ExpandIterable = ExpandIterable$();
   let _currentExpansion = dart.JsSymbol('_currentExpansion');
   let _nextExpansion = dart.JsSymbol('_nextExpansion');
   let ExpandIterator$ = dart.generic(function(S, T) {
     class ExpandIterator extends core.Object {
       ExpandIterator(iterator, f) {
         this[_iterator] = iterator;
         this[_f] = f;
-        this[_currentExpansion] = new (EmptyIterator$(T))();
+        this[_currentExpansion] = dart.const(new (EmptyIterator$(T))());
         this[_current] = null;
       }
       [_nextExpansion]() {}
       get current() {
         return this[_current];
       }
       moveNext() {
         if (this[_currentExpansion] == null)
           return false;
         while (!dart.notNull(this[_currentExpansion].moveNext())) {
@@ skipping 226 matching lines @@
     }
     return SkipWhileIterator;
   });
   let SkipWhileIterator = SkipWhileIterator$();
   let EmptyIterable$ = dart.generic(function(E) {
     class EmptyIterable extends collection.IterableBase$(E) {
       EmptyIterable() {
         super.IterableBase();
       }
       get [core.$iterator]() {
-        return new (EmptyIterator$(E))();
+        return dart.const(new (EmptyIterator$(E))());
       }
       [core.$forEach](action) {}
       get [core.$isEmpty]() {
         return true;
       }
       get [core.$length]() {
         return 0;
       }
       get [core.$first]() {
         throw IterableElementError.noElement();
@@ skipping 36 matching lines @@
       }
       [core.$join](separator) {
         if (separator === void 0)
           separator = "";
         return "";
       }
       [core.$where](test) {
         return this;
       }
       [core.$map](f) {
-        return new EmptyIterable();
+        return dart.const(new EmptyIterable());
       }
       [core.$reduce](combine) {
         throw IterableElementError.noElement();
       }
       [core.$fold](initialValue, combine) {
         return initialValue;
       }
       [core.$skip](count) {
         core.RangeError.checkNotNegative(count, "count");
         return this;
@@ skipping 1064 matching lines @@
   Symbol.identifierRE = '(?!' + `${Symbol.reservedWordRE}` + '\\b(?!\\$))[a-zA-Z$_][\\w$]*';
   Symbol.operatorRE = '(?:[\\-+*/%&|^]|\\[\\]=?|==|~/?|<[<=]?|>[>=]?|unary-)';
   dart.defineLazyProperties(Symbol, {
     get publicSymbolPattern() {
       return new core.RegExp(`^(?:${Symbol.operatorRE}$|${Symbol.publicIdentifierRE}(?:=?$|[.](?!$)))+?$`);
     },
     get symbolPattern() {
       return new core.RegExp(`^(?:${Symbol.operatorRE}$|${Symbol.identifierRE}(?:=?$|[.](?!$)))+?$`);
     }
   });
-  let POWERS_OF_TEN = /* Unimplemented const */[1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0, 10000000.0, 100000000.0, 1000000000.0, 10000000000.0, 100000000000.0, 1000000000000.0, 10000000000000.0, 100000000000000.0, 1000000000000000.0, 10000000000000000.0, 100000000000000000.0, 1000000000000000000.0, 10000000000000000000.0, 100000000000000000000.0, 1e+21, 1e+22];
+  let POWERS_OF_TEN = dart.const([1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0, 10000000.0, 100000000.0, 1000000000.0, 10000000000.0, 100000000000.0, 1000000000000.0, 10000000000000.0, 100000000000000.0, 1000000000000000.0, 10000000000000000.0, 100000000000000000.0, 1000000000000000000.0, 10000000000000000000.0, 100000000000000000000.0, 1e+21, 1e+22]);
   // Exports:
   exports.EfficientLength = EfficientLength;
   exports.ListIterable$ = ListIterable$;
   exports.ListIterable = ListIterable;
   exports.SubListIterable$ = SubListIterable$;
   exports.SubListIterable = SubListIterable;
   exports.ListIterator$ = ListIterator$;
   exports.ListIterator = ListIterator;
   exports.MappedIterable$ = MappedIterable$;
   exports.MappedIterable = MappedIterable;
@@ skipping 54 matching lines @@
   exports.ReversedListIterable = ReversedListIterable;
   exports.UnmodifiableListError = UnmodifiableListError;
   exports.NonGrowableListError = NonGrowableListError;
   exports.makeListFixedLength = makeListFixedLength;
   exports.Lists = Lists;
   exports.printToConsole = printToConsole;
   exports.Sort = Sort;
   exports.Symbol = Symbol;
   exports.POWERS_OF_TEN = POWERS_OF_TEN;
 })(_internal || (_internal = {}));