Fix MSVC "not all control paths return a value" warning. NFC.

RKSimon · RKSimon · commit e6ba0a55fd39 · 2020-06-03T11:12:43.000+01:00
Add llvm_unreachable after switch statement for CheckerRegistry::StateFromCmdLine enum
diff --git a/clang/lib/StaticAnalyzer/Frontend/CheckerRegistry.cpp b/clang/lib/StaticAnalyzer/Frontend/CheckerRegistry.cpp
@@ -112,6 +112,7 @@ static StringRef toString(CheckerRegistry::StateFromCmdLine Kind) {
   case CheckerRegistry::StateFromCmdLine::State_Unspecified:
     return "Unspecified";
   }
+  llvm_unreachable("Unhandled CheckerRegistry::StateFromCmdLine enum");
 }
 
 LLVM_DUMP_METHOD void

Original file line number	Diff line number	Diff line change
`@@ -112,6 +112,7 @@ static StringRef toString(CheckerRegistry::StateFromCmdLine Kind) {`
`112`	`112`	`case CheckerRegistry::StateFromCmdLine::State_Unspecified:`
`113`	`113`	`return "Unspecified";`
`114`	`114`	`}`
	`115`	`+ llvm_unreachable("Unhandled CheckerRegistry::StateFromCmdLine enum");`
`115`	`116`	`}`
`116`	`117`
`117`	`118`	`LLVM_DUMP_METHOD void`