Handle default keyword of default export

Author: sheetalkamat

src/services/findAllReferences.ts

@@ -79,7 +79,12 @@ namespace ts.FindAllReferences {
             // Property name of the import export specifier or binding pattern, use parent
             ((isImportOrExportSpecifier(node.parent) || isBindingElement(node.parent))
                 && node.parent.propertyName === node) ||
-            isExportAssignment(node.parent) && node.parent.expression === node) {
+            isExportAssignment(node.parent) && (
+                node.parent.expression === node ||
+                (!node.parent.isExportEquals && node.kind === SyntaxKind.DefaultKeyword)
+            ) ||
+            // Is default export
+            (node.kind === SyntaxKind.DefaultKeyword && hasModifier(node.parent, ModifierFlags.ExportDefault))) {
             return getDeclarationForDeclarationSpan(node.parent);
         }
 

tests/cases/fourslash/findAllRefsForDefaultExport04.ts

@@ -1,14 +1,14 @@
 /// <reference path='fourslash.ts' />
 
 // @Filename: /a.ts
-////const [|{| "isWriteAccess": true, "isDefinition": true |}a|] = 0;
-////export [|{| "isWriteAccess": true, "isDefinition": true |}default|] [|a|];
+////[|const [|{| "isWriteAccess": true, "isDefinition": true, "declarationRangeIndex": 0 |}a|] = 0;|]
+////[|export [|{| "isWriteAccess": true, "isDefinition": true, "declarationRangeIndex": 2 |}default|] [|{| "declarationRangeIndex": 2 |}a|];|]
 
 // @Filename: /b.ts
-////import [|{| "isWriteAccess": true, "isDefinition": true |}a|] from "./a";
+////[|import [|{| "isWriteAccess": true, "isDefinition": true, "declarationRangeIndex": 5 |}a|] from "./a";|]
 ////[|a|];
 
-const [r0, r1, r2, r3, r4] = test.ranges();
+const [r0Def, r0, r1Def, r1, r2, r3Def, r3, r4] = test.ranges();
 verify.referenceGroups([r0, r2], [
     { definition: "const a: 0", ranges: [r0, r2] },
     { definition: "(alias) const a: 0\nimport a", ranges: [r3, r4] }

tests/cases/fourslash/findAllRefsForDefaultExportAnonymous.ts

@@ -1,12 +1,12 @@
 /// <reference path='fourslash.ts' />
 
 // @Filename: /a.ts
-////export [|{| "isWriteAccess": true, "isDefinition": true |}default|] function() {}
+////[|export [|{| "isWriteAccess": true, "isDefinition": true, "declarationRangeIndex": 0 |}default|] function() {}|]
 
 // @Filename: /b.ts
-////import [|{| "isWriteAccess": true, "isDefinition": true |}f|] from "./a";
+////[|import [|{| "isWriteAccess": true, "isDefinition": true, "declarationRangeIndex": 2 |}f|] from "./a";|]
 
-const [r0, r1] = test.ranges();
+const [r0Def, r0, r1Def, r1] = test.ranges();
 verify.referenceGroups(r0, [
     { definition: "function default(): void", ranges: [r0] },
     { definition: "import f", ranges: [r1] },

tests/cases/fourslash/findAllRefsForDefaultExport_anonymous.ts

@@ -1,12 +1,12 @@
 /// <reference path='fourslash.ts' />
 
 // @Filename: /a.ts
-////export [|{| "isDefinition": true, "isWriteAccess": true |}default|] 1;
+////[|export [|{| "isDefinition": true, "isWriteAccess": true, "declarationRangeIndex": 0 |}default|] 1;|]
 
 // @Filename: /b.ts
-////import [|{| "isDefinition": true, "isWriteAccess": true |}a|] from "./a";
+////[|import [|{| "isDefinition": true, "isWriteAccess": true, "declarationRangeIndex": 2 |}a|] from "./a";|]
 
-const [r0, r1] = test.ranges();
+const [r0Def, r0, r1Def, r1] = test.ranges();
 verify.referenceGroups(r0, [
     { definition: "(property) default: 1", ranges: [r0] },
     { definition: "import a", ranges: [r1] },