update message, generate diagnostics, update src and accept baselines

Author: Michael Henderson

src/compiler/checker.ts

@@ -32818,7 +32818,7 @@ namespace ts {
                                 const name = getHelperName(helper);
                                 const symbol = getSymbol(helpersModule.exports!, escapeLeadingUnderscores(name), SymbolFlags.Value);
                                 if (!symbol) {
-                                    error(location, Diagnostics.This_syntax_requires_an_imported_helper_named_1_but_module_0_has_no_exported_member_1, externalHelpersModuleNameText, name);
+                                    error(location, Diagnostics.This_syntax_requires_an_imported_helper_named_1_which_does_not_exist_in_0_Consider_upgrading_your_version_of_0, externalHelpersModuleNameText, name);
                                 }
                             }
                         }

src/compiler/diagnosticMessages.json

@@ -1241,7 +1241,7 @@
         "category": "Error",
         "code": 2342
     },
-    "This syntax requires an imported helper named '{1}', but module '{0}' has no exported member '{1}'.": {
+    "This syntax requires an imported helper named '{1}' which does not exist in '{0}'. Consider upgrading your version of '{0}'.": {
         "category": "Error",
         "code": 2343
     },

tests/baselines/reference/importHelpersNoHelpers.errors.txt

@@ -1,42 +1,42 @@
-tests/cases/compiler/external.ts(1,1): error TS2343: This syntax requires an imported helper named '__exportStar', but module 'tslib' has no exported member '__exportStar'.
-tests/cases/compiler/external.ts(3,16): error TS2343: This syntax requires an imported helper named '__extends', but module 'tslib' has no exported member '__extends'.
-tests/cases/compiler/external.ts(7,1): error TS2343: This syntax requires an imported helper named '__decorate', but module 'tslib' has no exported member '__decorate'.
-tests/cases/compiler/external.ts(7,1): error TS2343: This syntax requires an imported helper named '__metadata', but module 'tslib' has no exported member '__metadata'.
-tests/cases/compiler/external.ts(9,12): error TS2343: This syntax requires an imported helper named '__param', but module 'tslib' has no exported member '__param'.
-tests/cases/compiler/external.ts(14,13): error TS2343: This syntax requires an imported helper named '__assign', but module 'tslib' has no exported member '__assign'.
-tests/cases/compiler/external.ts(15,12): error TS2343: This syntax requires an imported helper named '__rest', but module 'tslib' has no exported member '__rest'.
+tests/cases/compiler/external.ts(1,1): error TS2343: This syntax requires an imported helper named '__exportStar' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/external.ts(3,16): error TS2343: This syntax requires an imported helper named '__extends' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/external.ts(7,1): error TS2343: This syntax requires an imported helper named '__decorate' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/external.ts(7,1): error TS2343: This syntax requires an imported helper named '__metadata' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/external.ts(9,12): error TS2343: This syntax requires an imported helper named '__param' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/external.ts(14,13): error TS2343: This syntax requires an imported helper named '__assign' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/external.ts(15,12): error TS2343: This syntax requires an imported helper named '__rest' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
 
 
 ==== tests/cases/compiler/external.ts (7 errors) ====
     export * from "./other";
     ~~~~~~~~~~~~~~~~~~~~~~~~
-!!! error TS2343: This syntax requires an imported helper named '__exportStar', but module 'tslib' has no exported member '__exportStar'.
+!!! error TS2343: This syntax requires an imported helper named '__exportStar' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
     export class A { }
     export class B extends A { }
                    ~~~~~~~~~
-!!! error TS2343: This syntax requires an imported helper named '__extends', but module 'tslib' has no exported member '__extends'.
+!!! error TS2343: This syntax requires an imported helper named '__extends' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
 
     declare var dec: any;
 
     @dec
     ~~~~
-!!! error TS2343: This syntax requires an imported helper named '__decorate', but module 'tslib' has no exported member '__decorate'.
+!!! error TS2343: This syntax requires an imported helper named '__decorate' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
     ~~~~
-!!! error TS2343: This syntax requires an imported helper named '__metadata', but module 'tslib' has no exported member '__metadata'.
+!!! error TS2343: This syntax requires an imported helper named '__metadata' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
     class C {
         method(@dec x: number) {
                ~~~~
-!!! error TS2343: This syntax requires an imported helper named '__param', but module 'tslib' has no exported member '__param'.
+!!! error TS2343: This syntax requires an imported helper named '__param' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
         }
     }
 
     const o = { a: 1 };
     const y = { ...o };
                 ~~~~
-!!! error TS2343: This syntax requires an imported helper named '__assign', but module 'tslib' has no exported member '__assign'.
+!!! error TS2343: This syntax requires an imported helper named '__assign' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
     const { ...x } = y;
                ~
-!!! error TS2343: This syntax requires an imported helper named '__rest', but module 'tslib' has no exported member '__rest'.
+!!! error TS2343: This syntax requires an imported helper named '__rest' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
 
 ==== tests/cases/compiler/other.ts (0 errors) ====
     export const x = 1;

tests/baselines/reference/importHelpersNoHelpersForAsyncGenerators.errors.txt

@@ -1,25 +1,25 @@
-tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__asyncGenerator', but module 'tslib' has no exported member '__asyncGenerator'.
-tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__await', but module 'tslib' has no exported member '__await'.
-tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__generator', but module 'tslib' has no exported member '__generator'.
-tests/cases/compiler/main.ts(4,5): error TS2343: This syntax requires an imported helper named '__asyncDelegator', but module 'tslib' has no exported member '__asyncDelegator'.
-tests/cases/compiler/main.ts(4,5): error TS2343: This syntax requires an imported helper named '__asyncValues', but module 'tslib' has no exported member '__asyncValues'.
+tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__asyncGenerator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__await' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__generator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/main.ts(4,5): error TS2343: This syntax requires an imported helper named '__asyncDelegator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
+tests/cases/compiler/main.ts(4,5): error TS2343: This syntax requires an imported helper named '__asyncValues' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
 
 
 ==== tests/cases/compiler/main.ts (5 errors) ====
     export async function * f() {
                             ~
-!!! error TS2343: This syntax requires an imported helper named '__asyncGenerator', but module 'tslib' has no exported member '__asyncGenerator'.
+!!! error TS2343: This syntax requires an imported helper named '__asyncGenerator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
                             ~
-!!! error TS2343: This syntax requires an imported helper named '__await', but module 'tslib' has no exported member '__await'.
+!!! error TS2343: This syntax requires an imported helper named '__await' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
                             ~
-!!! error TS2343: This syntax requires an imported helper named '__generator', but module 'tslib' has no exported member '__generator'.
+!!! error TS2343: This syntax requires an imported helper named '__generator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
         await 1;
         yield 2;
         yield* [3];
         ~~~~~~~~~~
-!!! error TS2343: This syntax requires an imported helper named '__asyncDelegator', but module 'tslib' has no exported member '__asyncDelegator'.
+!!! error TS2343: This syntax requires an imported helper named '__asyncDelegator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
         ~~~~~~~~~~
-!!! error TS2343: This syntax requires an imported helper named '__asyncValues', but module 'tslib' has no exported member '__asyncValues'.
+!!! error TS2343: This syntax requires an imported helper named '__asyncValues' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
     }
 
 ==== tests/cases/compiler/tslib.d.ts (0 errors) ====

tests/baselines/reference/taggedTemplateWithoutDeclaredHelper.errors.txt

@@ -1,4 +1,4 @@
-tests/cases/compiler/foo.ts(5,23): error TS2343: This syntax requires an imported helper named '__makeTemplateObject', but module 'tslib' has no exported member '__makeTemplateObject'.
+tests/cases/compiler/foo.ts(5,23): error TS2343: This syntax requires an imported helper named '__makeTemplateObject' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
 
 
 ==== tests/cases/compiler/foo.ts (1 errors) ====
@@ -8,7 +8,7 @@ tests/cases/compiler/foo.ts(5,23): error TS2343: This syntax requires an importe
 
     export const result = id `hello world`;
                           ~~~~~~~~~~~~~~~~
-!!! error TS2343: This syntax requires an imported helper named '__makeTemplateObject', but module 'tslib' has no exported member '__makeTemplateObject'.
+!!! error TS2343: This syntax requires an imported helper named '__makeTemplateObject' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
 
 ==== tests/cases/compiler/node_modules/tslib/index.d.ts (0 errors) ====
     export { };