add Arbitrary module namespace names feature

features.txt

@@ -188,6 +188,10 @@ Array.prototype.item
 String.prototype.item
 TypedArray.prototype.item
 
+# Arbitrary module namespace names
+# https://github.com/tc39/ecma262/pull/2154
+arbitrary-module-namespace-names
+
 ## Standard language features
 #
 # Language features that have been included in a published version of the

test/language/module-code/early-export-ill-formed-string.js

@@ -12,6 +12,7 @@ negative:
   flags: module
   phase: parse
   type: SyntaxError
+features: [arbitrary-module-namespace-names]
 ---*/
 
 $DONOTEVALUATE();

test/language/module-code/export-expname-binding-string.js

@@ -10,6 +10,7 @@ info: |
   ModuleExportName : StringLiteral
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import * as Scouts from "./export-expname_FIXTURE.js";
 

test/language/module-code/export-expname-from-binding-string.js

@@ -14,6 +14,7 @@ info: |
   ModuleExportName : StringLiteral
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import * as Scouts from "./export-expname-from-binding-string.js";
 export { Mercury as "☿" } from "./export-expname_FIXTURE.js";

test/language/module-code/export-expname-from-star-string.js

@@ -11,6 +11,7 @@ info: |
   ModuleExportName : StringLiteral
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import * as Scouts from "./export-expname-from-star-string.js";
 export * as "All" from "./export-expname_FIXTURE.js";

test/language/module-code/export-expname-from-star.js

@@ -9,6 +9,7 @@ info: |
     `*`
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import * as Scouts from "./export-expname-from-star.js";
 export * from "./export-expname_FIXTURE.js";

test/language/module-code/export-expname-from-string-binding.js

@@ -12,6 +12,7 @@ info: |
     [+From] ModuleExportName as IdentifierName
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import * as Scouts from "./export-expname-from-string-binding.js";
 export { "☿" as Ami } from "./export-expname_FIXTURE.js";

test/language/module-code/export-expname-from-string-string.js

@@ -12,6 +12,7 @@ info: |
     [+From] ModuleExportName as ModuleExportName
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import * as Scouts from "./export-expname-from-string-string.js";
 export { "☿" as "Ami" } from "./export-expname_FIXTURE.js";

test/language/module-code/export-expname-from-string.js

@@ -14,6 +14,7 @@ info: |
   ModuleExportName : StringLiteral
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import * as Scouts from "./export-expname-from-string.js";
 export { "☿" } from "./export-expname_FIXTURE.js";

test/language/module-code/export-expname-import-string-binding.js

@@ -10,6 +10,7 @@ info: |
     ModuleExportName `as` IdentifierName
 
 flags: [module]
+features: [arbitrary-module-namespace-names]
 ---*/
 import { "☿" as Ami } from "./export-expname_FIXTURE.js";