MachOObjectFile: Change isSectionText to return true for sections named text, not for load commands name __TEXT (which isn't the case in actual object files)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135228 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Object/MachOObjectFile.cpp b/lib/Object/MachOObjectFile.cpp
index 71f1f8c..37edefe 100644
--- a/lib/Object/MachOObjectFile.cpp
+++ b/lib/Object/MachOObjectFile.cpp
@@ -276,10 +276,9 @@
 
 error_code MachOObjectFile::isSectionText(DataRefImpl DRI,
                                           bool &Result) const {
-  InMemoryStruct<macho::SegmentLoadCommand> SLC;
-  LoadCommandInfo LCI = MachOObj->getLoadCommandInfo(DRI.d.a);
-  MachOObj->ReadSegmentLoadCommand(LCI, SLC);
-  Result = !strcmp(SLC->Name, "__TEXT");
+  InMemoryStruct<macho::Section> Sect;
+  getSection(DRI, Sect);
+  Result = !strcmp(Sect->Name, "__text");
   return object_error::success;
 }