Fix Up Initialization Ordering In ClangImporter::Implementation

Author: CodaFi

lib/ClangImporter/ClangImporter.cpp

@@ -2226,8 +2226,8 @@ ClangImporter::Implementation::Implementation(
       EnableClangSPI(ctx.ClangImporterOpts.EnableClangSPI),
       IsReadingBridgingPCH(false),
       CurrentVersion(ImportNameVersion::fromOptions(ctx.LangOpts)),
-      BuffersForDiagnostics(ctx.SourceMgr),
       BridgingHeaderLookupTable(new SwiftLookupTable(nullptr)),
+      BuffersForDiagnostics(ctx.SourceMgr),
       platformAvailability(ctx.LangOpts), nameImporter(),
       DisableSourceImport(ctx.ClangImporterOpts.DisableSourceImport),
       DWARFImporter(dwarfImporterDelegate) {}