Fix panic when checking JSDoc parameters with binding patterns

internal/checker/checker.go

@@ -30398,7 +30398,7 @@ func (c *Checker) getSymbolAtLocation(node *ast.Node, ignoreErrors bool) *ast.Sy
 		} else if ast.IsJSDocParameterTag(parent) && parent.Name() == node {
 			if fn := ast.GetNodeAtPosition(ast.GetSourceFileOfNode(node), node.Pos(), false); fn != nil && ast.IsFunctionLike(fn) {
 				for _, param := range fn.Parameters() {
-					if param.Name().Text() == node.Text() {
+					if ast.IsIdentifier(param.Name()) && param.Name().Text() == node.Text() {
 						return c.getSymbolOfNode(param)
 					}
 				}

internal/fourslash/tests/manual/findAllRefsJSDocArrayDestructuredParam_test.go

@@ -0,0 +1,24 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+// Regression test for panic: "Unhandled case in Node.Text: *ast.BindingPattern"
+// This tests array binding patterns specifically.
+func TestFindAllRefsJSDocArrayDestructuredParam(t *testing.T) {
+	t.Parallel()
+
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `
+/**
+ * @param /*1*/arr - array destructured parameter
+ */
+function f([x, y]) {}
+`
+	f := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	f.VerifyBaselineFindAllReferences(t, "1")
+}

internal/fourslash/tests/manual/findAllRefsJSDocDestructuredParam_test.go

@@ -0,0 +1,25 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+// Regression test for panic: "Unhandled case in Node.Text: *ast.BindingPattern"
+// This occurred when requesting findAllReferences with a JSDoc parameter tag
+// that referenced a destructured parameter.
+func TestFindAllRefsJSDocDestructuredParam(t *testing.T) {
+	t.Parallel()
+
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `
+/**
+ * @param /*1*/obj - object destructured parameter
+ */
+function f({ x, y }) {}
+`
+	f := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	f.VerifyBaselineFindAllReferences(t, "1")
+}

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

@@ -0,0 +1,7 @@
+// === findAllReferences ===
+// === /findAllRefsJSDocArrayDestructuredParam.ts ===
+// /**
+//  * @param /*FIND ALL REFS*/arr - array destructured parameter
+//  */
+// function f([x, y]) {}
+// 

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

@@ -0,0 +1,7 @@
+// === findAllReferences ===
+// === /findAllRefsJSDocDestructuredParam.ts ===
+// /**
+//  * @param /*FIND ALL REFS*/obj - object destructured parameter
+//  */
+// function f({ x, y }) {}
+//