[Distributed] workaround for inout removal fixit

Author: ktoso

lib/Sema/TypeCheckDistributed.cpp

@@ -154,7 +154,9 @@ bool swift::checkDistributedFunction(FuncDecl *func, bool diagnose) {
           diag::distributed_actor_func_inout,
           param->getName(),
           func->getDescriptiveKind(), func->getName()
-      ).fixItRemove(param->getSpecifierLoc()); // FIXME(distributed): does not seem to cause the fixit...? Is the Loc invalid...?
+      ).fixItRemove(SourceRange(param->getTypeSourceRangeForDiagnostics().Start,
+                                param->getTypeSourceRangeForDiagnostics().Start.getAdvancedLoc(1)));
+      // FIXME(distributed): the fixIt should be on param->getSpecifierLoc(), but that Loc is invalid for some reason?
       return true;
     }
 

test/Distributed/distributed_actor_isolation.swift

@@ -84,7 +84,7 @@ distributed actor DistributedActor_1 {
   }
 
   distributed func noInout(inNOut burger: inout String) {
-    // expected-error@-1{{cannot declare 'inout' argument 'burger' in distributed instance method 'noInout(inNOut:)'}}
+    // expected-error@-1{{cannot declare 'inout' argument 'burger' in distributed instance method 'noInout(inNOut:)'}}{{43-49=}}
   }
 
   distributed func distReturnGeneric<T: Codable & Sendable>(item: T) async throws -> T { // ok