Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang -Wall -fsyntax-only %s --serialize-diagnostics %t.diag > /dev/null 2>&1 // RUN: llvm-bcanalyzer -dump %t.diag | FileCheck %s // CHECK: Stream type: Clang Serialized Diagnostics