fix(2674): fix identifier name lookup in variable declaration lists (#2677)

Author: a-tarasyuk

internal/fourslash/tests/findAllRefsConst_test.go

@@ -0,0 +1,19 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+func TestFindAllRefsConst(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `// @Filename: a.ts
+/**/const const
+`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyBaselineFindAllReferences(t, "")
+}

internal/ls/utilities.go

@@ -680,11 +680,12 @@ func getAdjustedLocation(node *ast.Node, forRename bool, sourceFile *ast.SourceF
 		}
 	}
 
-	// /**/<var|let| [|n:ame|] ...
-	if node.Kind == ast.KindVarKeyword || node.Kind == ast.KindConstKeyword || node.Kind == ast.KindLetKeyword &&
+	// /**/<var|let|const> [|name|] ...
+	if (node.Kind == ast.KindVarKeyword || node.Kind == ast.KindConstKeyword || node.Kind == ast.KindLetKeyword) &&
 		ast.IsVariableDeclarationList(parent) && len(parent.AsVariableDeclarationList().Declarations.Nodes) == 1 {
-		if decl := parent.AsVariableDeclarationList().Declarations.Nodes[0].AsVariableDeclaration(); ast.IsIdentifier(decl.Name()) {
-			return decl.Name()
+		declaration := parent.AsVariableDeclarationList().Declarations.Nodes[0].AsVariableDeclaration()
+		if ast.IsIdentifier(declaration.Name()) {
+			return declaration.Name()
 		}
 	}
 

testdata/baselines/reference/fourslash/findAllReferences/findAllRefsConst.baseline.jsonc

@@ -0,0 +1,4 @@
+// === findAllReferences ===
+// === /a.ts ===
+// /*FIND ALL REFS*/const const
+//