swift

c0a93f93 - [flow-isolation] Extract diagnostic helpers into DiagnosticHelpers.h

[flow-isolation] Extract diagnostic helpers into DiagnosticHelpers.h FlowIsolation was digging into ASTContext::Diags manually and extracting SILLocations from SIL constructs. Rather than do this, refactor the diagnostic helpers I used in SendNonSendable into DiagnosticHelpers.h and use them in both passes.