Remove depth argument from InlineInfo accessors in stack maps.

The InlineInfo class actually represented a list of inlining
information for a given stack map, and the depth argument was
used everywhere to select to desired element from the list.
This was verbose and inconsistent with the other classes.

Change the InlineInfo class to represent a single inlining,
and select the desired depth when getting it from CodeInfo.

Test: test-art-host-gtest-stack_map_test
Change-Id: I35b73e6704854f0203f51d4dbdbed5b1d1cd5a3b
diff --git a/compiler/optimizing/stack_map_stream.cc b/compiler/optimizing/stack_map_stream.cc
index 7a60d4a..d80e2fc 100644
--- a/compiler/optimizing/stack_map_stream.cc
+++ b/compiler/optimizing/stack_map_stream.cc
@@ -84,9 +84,7 @@
         CHECK_EQ(seen_stack_mask.LoadBit(b), stack_mask != nullptr && stack_mask->IsBitSet(b));
       }
       CHECK_EQ(stack_map.HasInlineInfo(), (inlining_depth != 0));
-      if (inlining_depth != 0) {
-        CHECK_EQ(code_info.GetInlineInfoOf(stack_map).GetDepth(), inlining_depth);
-      }
+      CHECK_EQ(code_info.GetInlineDepthOf(stack_map), inlining_depth);
       CHECK_EQ(stack_map.HasDexRegisterMap(), (num_dex_registers != 0));
     });
   }
@@ -174,17 +172,17 @@
     size_t depth = current_inline_infos_.size() - 1;
     dchecks_.emplace_back([=](const CodeInfo& code_info) {
       StackMap stack_map = code_info.GetStackMapAt(stack_map_index);
-      InlineInfo inline_info = code_info.GetInlineInfoOf(stack_map);
-      CHECK_EQ(inline_info.GetDexPcAtDepth(depth), dex_pc);
+      InlineInfo inline_info = code_info.GetInlineInfoAtDepth(stack_map, depth);
+      CHECK_EQ(inline_info.GetDexPc(), dex_pc);
       bool encode_art_method = EncodeArtMethodInInlineInfo(method);
-      CHECK_EQ(inline_info.EncodesArtMethodAtDepth(depth), encode_art_method);
+      CHECK_EQ(inline_info.EncodesArtMethod(), encode_art_method);
       if (encode_art_method) {
-        CHECK_EQ(inline_info.GetArtMethodAtDepth(depth), method);
+        CHECK_EQ(inline_info.GetArtMethod(), method);
       } else {
-        CHECK_EQ(method_infos_[inline_info.GetMethodIndexIdxAtDepth(depth)],
+        CHECK_EQ(method_infos_[inline_info.GetMethodIndexIdx()],
                  method->GetDexMethodIndexUnchecked());
       }
-      CHECK_EQ(inline_info.HasDexRegisterMapAtDepth(depth), (num_dex_registers != 0));
+      CHECK_EQ(inline_info.HasDexRegisterMap(), (num_dex_registers != 0));
     });
   }
 }
@@ -240,9 +238,7 @@
       size_t num_dex_registers = expected_dex_registers->size();
       DexRegisterMap map = (depth == -1)
         ? code_info.GetDexRegisterMapOf(stack_map, num_dex_registers)
-        : code_info.GetDexRegisterMapAtDepth(depth,
-                                             code_info.GetInlineInfoOf(stack_map),
-                                             num_dex_registers);
+        : code_info.GetDexRegisterMapAtDepth(depth, stack_map, num_dex_registers);
       CHECK_EQ(map.size(), num_dex_registers);
       for (size_t r = 0; r < num_dex_registers; r++) {
         CHECK_EQ(expected_dex_registers->at(r), map.Get(r));