Revert "Merge GrOpList and GrRTOpList and rename to GrOpsTask."

This reverts commit 2a5954140b49d18e5161a30a4ae2c7ac28bc1993.

Reason for revert: breaking everything

Original change's description:
> Merge GrOpList and GrRTOpList and rename to GrOpsTask.
> 
> Change-Id: I8f4f2218a30fd0541a8f79f7bb9850f9500cd243
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/236343
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com

Change-Id: I27840ea0343e8e6b388556afb7bd2e76386d611d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/236349
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/GrTransferFromRenderTask.cpp b/src/gpu/GrTransferFromRenderTask.cpp
index 7826bce..3e6dfc5 100644
--- a/src/gpu/GrTransferFromRenderTask.cpp
+++ b/src/gpu/GrTransferFromRenderTask.cpp
@@ -13,7 +13,7 @@
 
 void GrTransferFromRenderTask::gatherProxyIntervals(GrResourceAllocator* alloc) const {
     // This renderTask doesn't have "normal" ops. In this case we still need to add an interval (so
-    // fEndOfOpsTaskOpIndices will remain in sync), so we create a fake op# to capture the fact that
+    // fEndOfOpListOpIndices will remain in sync), so we create a fake op# to capture the fact that
     // we read fSrcProxy.
     alloc->addInterval(fSrcProxy.get(), alloc->curOp(), alloc->curOp(),
                        GrResourceAllocator::ActualUse::kYes);