compiler/testData/psi/QuotedIdentifiers.kt - third_party/github/JetBrains/kotlin - Git at Google

 @`return` fun `package`() {
   `class`()
 }

 class `$`
 class `$$`
 class ` `
 class `1`
	@`return` fun `package`() {
	`class`()
	}

	class `$`
	class `$$`
	class ` `
	class `1`