[NFC] Drop SourceFileKind from getMainSourceFile

The parameter here was derived from the CompilerInvocation-level parsing bits, which doesn't make any sense. This state is going away soon, so drop the parameter.

Author: CodaFi

include/swift/AST/Module.h

@@ -458,7 +458,7 @@ class ModuleDecl : public DeclContext, public TypeDecl {
 
   /// Convenience accessor for clients that know what kind of file they're
   /// dealing with.
-  SourceFile &getMainSourceFile(SourceFileKind expectedKind) const;
+  SourceFile &getMainSourceFile() const;
 
   /// Convenience accessor for clients that know what kind of file they're
   /// dealing with.

include/swift/AST/SourceFile.h

@@ -624,10 +624,8 @@ inline SourceFile::ParsingOptions operator|(SourceFile::ParsingFlags lhs,
   return SourceFile::ParsingOptions(lhs) | rhs;
 }
 
-inline SourceFile &
-ModuleDecl::getMainSourceFile(SourceFileKind expectedKind) const {
+inline SourceFile &ModuleDecl::getMainSourceFile() const {
   assert(!Files.empty() && "No files added yet");
-  assert(cast<SourceFile>(Files.front())->Kind == expectedKind);
   return *cast<SourceFile>(Files.front());
 }
 

tools/swift-ide-test/ModuleAPIDiff.cpp

@@ -931,8 +931,7 @@ int swift::doGenerateModuleAPIDescription(StringRef MainExecutablePath,
   PrintOptions Options = PrintOptions::printEverything();
 
   ModuleDecl *M = CI.getMainModule();
-  M->getMainSourceFile(Invocation.getSourceFileKind()).print(llvm::outs(),
-                                                             Options);
+  M->getMainSourceFile().print(llvm::outs(), Options);
 
   auto SMAModel = createSMAModel(M);
   llvm::yaml::Output YOut(llvm::outs());

tools/swift-ide-test/swift-ide-test.cpp

@@ -2158,8 +2158,7 @@ static int doPrintAST(const CompilerInvocation &InitInvok,
 
   if (MangledNameToFind.empty()) {
     ModuleDecl *M = CI.getMainModule();
-    M->getMainSourceFile(Invocation.getSourceFileKind()).print(llvm::outs(),
-                                                               Options);
+    M->getMainSourceFile().print(llvm::outs(), Options);
     return EXIT_SUCCESS;
   }