Revert "[memprof] Update YAML traits for writer purposes (llvm#118720)"

This reverts commit 7b8cf14.

Breaks building on macOS
    https://lab.llvm.org/buildbot/#/builders/190/builds/10737
    https://lab.llvm.org/buildbot/#/builders/23/builds/5491
    https://green.lab.llvm.org/job/llvm.org/job/clang-stage1-cmake-RA-incremental/6076/

Author: fhahn

llvm/include/llvm/ProfileData/MemProf.h

@@ -1183,10 +1183,6 @@ template <> struct MappingTraits<memprof::Frame> {
     (void)Column;
     (void)IsInlineFrame;
   }
-
-  // Request the inline notation for brevity:
-  //   { Function: 123, LineOffset: 11, Column: 10; IsInlineFrame: true }
-  static const bool flow = true;
 };
 
 template <> struct CustomMappingTraits<memprof::PortableMemInfoBlock> {
@@ -1211,13 +1207,8 @@ template <> struct CustomMappingTraits<memprof::PortableMemInfoBlock> {
     Io.setError("Key is not a valid validation event");
   }
 
-  static void output(IO &Io, memprof::PortableMemInfoBlock &MIB) {
-    auto Schema = MIB.getSchema();
-#define MIBEntryDef(NameTag, Name, Type)                                       \
-  if (Schema.test(llvm::to_underlying(memprof::Meta::Name)))                   \
-    Io.mapRequired(#Name, MIB.Name);
-#include "llvm/ProfileData/MIBEntryDef.inc"
-#undef MIBEntryDef
+  static void output(IO &Io, memprof::PortableMemInfoBlock &VI) {
+    llvm_unreachable("To be implemented");
   }
 };
 

llvm/unittests/ProfileData/MemProfTest.cpp

@@ -807,40 +807,4 @@ TEST(MemProf, YAMLParser) {
   EXPECT_THAT(Record.CallSiteIds,
               ElementsAre(hashCallStack(CS3), hashCallStack(CS4)));
 }
-
-template <typename T> std::string serializeInYAML(T &Val) {
-  std::string Out;
-  llvm::raw_string_ostream OS(Out);
-  llvm::yaml::Output Yout(OS);
-  Yout << Val;
-  return Out;
-}
-
-TEST(MemProf, YAMLWriterFrame) {
-  Frame F(11, 22, 33, true);
-
-  std::string Out = serializeInYAML(F);
-  EXPECT_EQ(Out, R"YAML(---
-{ Function: 11, LineOffset: 22, Column: 33, Inline: true }
-...
-)YAML");
-}
-
-TEST(MemProf, YAMLWriterMIB) {
-  MemInfoBlock MIB;
-  MIB.AllocCount = 111;
-  MIB.TotalSize = 222;
-  MIB.TotalLifetime = 333;
-  MIB.TotalLifetimeAccessDensity = 444;
-  PortableMemInfoBlock PMIB(MIB, llvm::memprof::getHotColdSchema());
-
-  std::string Out = serializeInYAML(PMIB);
-  EXPECT_EQ(Out, R"YAML(---
-AllocCount:      111
-TotalSize:       222
-TotalLifetime:   333
-TotalLifetimeAccessDensity: 444
-...
-)YAML");
-}
 } // namespace