Add finishNode when parsing malformed property declaration (#182)

Author: sandersn

internal/parser/parser.go

@@ -1461,7 +1461,7 @@ func (p *Parser) parseClassElement() *ast.Node {
 	if modifiers != nil {
 		// treat this as a property declaration with a missing name.
 		p.parseErrorAt(p.nodePos(), p.nodePos(), diagnostics.Declaration_expected)
-		name := p.newIdentifier("")
+		name := p.createMissingIdentifier()
 		return p.parsePropertyDeclaration(pos, hasJSDoc, modifiers, name, nil /*questionToken*/)
 	}
 	// 'isClassMemberStart' should have hinted not to attempt parsing.
@@ -5418,9 +5418,7 @@ func (p *Parser) createIdentifierWithDiagnostic(isIdentifier bool, diagnosticMes
 	} else {
 		p.parseErrorAtCurrentToken(diagnostics.Identifier_expected)
 	}
-	result := p.newIdentifier("")
-	p.finishNode(result, p.nodePos())
-	return result
+	return p.createMissingIdentifier()
 }
 
 func (p *Parser) internIdentifier(text string) {