[cleanup] Rename field offsets in StackFrameInfo

This CL renames field offsets from *Index to *Offset in the
StackFrameInfo class for consistency.

R=mstarzinger@chromium.org

Bug: v8:8562
Change-Id: I9ccec3e6f924a4040d26dc677fdd1ec620cf0463
Reviewed-on: https://chromium-review.googlesource.com/c/1460937Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59460}

src/objects/stack-frame-info-inl.h

@@ -21,18 +21,18 @@ NEVER_READ_ONLY_SPACE_IMPL(StackFrameInfo)
 
 CAST_ACCESSOR(StackFrameInfo)
 
-SMI_ACCESSORS(StackFrameInfo, line_number, kLineNumberIndex)
-SMI_ACCESSORS(StackFrameInfo, column_number, kColumnNumberIndex)
-SMI_ACCESSORS(StackFrameInfo, script_id, kScriptIdIndex)
-ACCESSORS(StackFrameInfo, script_name, Object, kScriptNameIndex)
+SMI_ACCESSORS(StackFrameInfo, line_number, kLineNumberOffset)
+SMI_ACCESSORS(StackFrameInfo, column_number, kColumnNumberOffset)
+SMI_ACCESSORS(StackFrameInfo, script_id, kScriptIdOffset)
+ACCESSORS(StackFrameInfo, script_name, Object, kScriptNameOffset)
 ACCESSORS(StackFrameInfo, script_name_or_source_url, Object,
-          kScriptNameOrSourceUrlIndex)
-ACCESSORS(StackFrameInfo, function_name, Object, kFunctionNameIndex)
-SMI_ACCESSORS(StackFrameInfo, flag, kFlagIndex)
+          kScriptNameOrSourceUrlOffset)
+ACCESSORS(StackFrameInfo, function_name, Object, kFunctionNameOffset)
+SMI_ACCESSORS(StackFrameInfo, flag, kFlagOffset)
 BOOL_ACCESSORS(StackFrameInfo, flag, is_eval, kIsEvalBit)
 BOOL_ACCESSORS(StackFrameInfo, flag, is_constructor, kIsConstructorBit)
 BOOL_ACCESSORS(StackFrameInfo, flag, is_wasm, kIsWasmBit)
-SMI_ACCESSORS(StackFrameInfo, id, kIdIndex)
+SMI_ACCESSORS(StackFrameInfo, id, kIdOffset)
 
 }  // namespace internal
 }  // namespace v8

src/objects/stack-frame-info.h

@@ -35,16 +35,16 @@ class StackFrameInfo : public Struct {
   DECL_VERIFIER(StackFrameInfo)
 
   // Layout description.
-#define STACK_FRAME_INFO_FIELDS(V)            \
-  V(kLineNumberIndex, kTaggedSize)            \
-  V(kColumnNumberIndex, kTaggedSize)          \
-  V(kScriptIdIndex, kTaggedSize)              \
-  V(kScriptNameIndex, kTaggedSize)            \
-  V(kScriptNameOrSourceUrlIndex, kTaggedSize) \
-  V(kFunctionNameIndex, kTaggedSize)          \
-  V(kFlagIndex, kTaggedSize)                  \
-  V(kIdIndex, kTaggedSize)                    \
-  /* Total size. */                           \
+#define STACK_FRAME_INFO_FIELDS(V)             \
+  V(kLineNumberOffset, kTaggedSize)            \
+  V(kColumnNumberOffset, kTaggedSize)          \
+  V(kScriptIdOffset, kTaggedSize)              \
+  V(kScriptNameOffset, kTaggedSize)            \
+  V(kScriptNameOrSourceUrlOffset, kTaggedSize) \
+  V(kFunctionNameOffset, kTaggedSize)          \
+  V(kFlagOffset, kTaggedSize)                  \
+  V(kIdOffset, kTaggedSize)                    \
+  /* Total size. */                            \
   V(kSize, 0)
 
   DEFINE_FIELD_OFFSET_CONSTANTS(Struct::kHeaderSize, STACK_FRAME_INFO_FIELDS)