test/DebugInfo/GuardVar.swift - third_party/swift - Git at Google

 // RUN: %target-swift-frontend %s -emit-ir -g -o - | FileCheck %s
 func markUsed<T>(_ t: T) {}

 public func f(_ i : Int?)
 {
   // CHECK: !DILocalVariable(name: "gv", {{.*}}line: [[@LINE+1]]
   guard var gv = i else { return }
   markUsed(gv)
 }
	// RUN: %target-swift-frontend %s -emit-ir -g -o - \| FileCheck %s
	func markUsed<T>(_ t: T) {}

	public func f(_ i : Int?)
	{
	// CHECK: !DILocalVariable(name: "gv", {{.*}}line: [[@LINE+1]]
	guard var gv = i else { return }
	markUsed(gv)
	}