[AIX][NFC] Disable clang-repl tests failing due to lack of 64-bit XCOFF support.

[stevewan]

Summary

The following interpreter tests failed on AIX because 64-bit XCOFF object files are currently not supported on AIX. This patch disables the tests on AIX for the time being.

[Jake-Egan]

LGTM

clang/unittests/Interpreter/InterpreterTest.cpp

 struct LLVMInitRAII {
   LLVMInitRAII() {
     llvm::InitializeNativeTarget();
     llvm::InitializeNativeTargetAsmPrinter();
   }
   ~LLVMInitRAII() { llvm::llvm_shutdown(); }
 } LLVMInit;
 
+#ifdef _AIX
+TEST(IncrementalProcessing, DISABLED_FindMangledNameSymbol) {
+#else
 TEST(IncrementalProcessing, FindMangledNameSymbol) {
+#endif
 
   std::unique_ptr<Interpreter> Interp = createInterpreter();
 
   auto &PTU(cantFail(Interp->Parse("int f(const char*) {return 0;}")));
   EXPECT_EQ(1U, DeclsSize(PTU.TUPart));
   auto R1DeclRange = PTU.TUPart->decls();
 
   NamedDecl *FD = cast<FunctionDecl>(*R1DeclRange.begin());
static NamedDecl *LookupSingleName(Interpreter &Interp, const char *Name) {
   ASTContext &C = SemaRef.getASTContext();
   DeclarationName DeclName = &C.Idents.get(Name);
   LookupResult R(SemaRef, DeclName, SourceLocation(), Sema::LookupOrdinaryName);
   SemaRef.LookupName(R, SemaRef.TUScope);
   assert(!R.empty());
   return R.getFoundDecl();
 }
 
+#ifdef _AIX
+TEST(IncrementalProcessing, DISABLED_InstantiateTemplate) {
+#else
 TEST(IncrementalProcessing, InstantiateTemplate) {
+#endif
   // FIXME: We cannot yet handle delayed template parsing. If we run with
   // -fdelayed-template-parsing we try adding the newly created decl to the
   // active PTU which causes an assert.
   std::vector<const char *> Args = {"-fno-delayed-template-parsing"};
   std::unique_ptr<Interpreter> Interp = createInterpreter(Args);
 
   llvm::cantFail(Interp->Parse("void* operator new(__SIZE_TYPE__, void* __p);"
                                "extern \"C\" int printf(const char*,...);"