[AST] NFC: Fix build warning on Windows

egorzhdan · egorzhdan · commit 839f8411b3a2 · 2024-11-28T13:30:19.000Z
This fixes a warning emitted by MSVC when building Swift.
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp
@@ -4843,6 +4843,7 @@ StringRef swift::getNameForParamSpecifier(ParamSpecifier specifier) {
   case ParamSpecifier::ImplicitlyCopyableConsuming:
     return "implicitly_copyable_consuming";
   }
+  llvm_unreachable("bad ParamSpecifier");
 }
 
 std::optional<DiagnosticBehavior>

Original file line number	Diff line number	Diff line change
`@@ -4843,6 +4843,7 @@ StringRef swift::getNameForParamSpecifier(ParamSpecifier specifier) {`
`4843`	`4843`	`case ParamSpecifier::ImplicitlyCopyableConsuming:`
`4844`	`4844`	`return "implicitly_copyable_consuming";`
`4845`	`4845`	`}`
	`4846`	`+ llvm_unreachable("bad ParamSpecifier");`
`4846`	`4847`	`}`
`4847`	`4848`
`4848`	`4849`	`std::optional<DiagnosticBehavior>`