Delete ArtMethod gc_map_ field

Moved the gc_map field from OatMethod to OatQuickMethodHeader.
Deleted the ArtMethod gc_map_ field.

Bug: 17643507

Change-Id: Ifa0470c3e4c2f8a319744464d94c6838b76b3d48

(cherry picked from commit 807140048f82a2b87ee5bcf337f23b6a3d1d5269)
diff --git a/compiler/common_compiler_test.cc b/compiler/common_compiler_test.cc
index 97387a1..a3d9a0b 100644
--- a/compiler/common_compiler_test.cc
+++ b/compiler/common_compiler_test.cc
@@ -60,14 +60,18 @@
       const std::vector<uint8_t>& mapping_table = compiled_method->GetMappingTable();
       uint32_t mapping_table_offset = mapping_table.empty() ? 0u
           : sizeof(OatQuickMethodHeader) + vmap_table.size() + mapping_table.size();
-      OatQuickMethodHeader method_header(mapping_table_offset, vmap_table_offset,
+      const std::vector<uint8_t>& gc_map = *compiled_method->GetGcMap();
+      uint32_t gc_map_offset = gc_map.empty() ? 0u
+          : sizeof(OatQuickMethodHeader) + vmap_table.size() + mapping_table.size() + gc_map.size();
+      OatQuickMethodHeader method_header(mapping_table_offset, vmap_table_offset, gc_map_offset,
                                          compiled_method->GetFrameSizeInBytes(),
                                          compiled_method->GetCoreSpillMask(),
                                          compiled_method->GetFpSpillMask(), code_size);
 
       header_code_and_maps_chunks_.push_back(std::vector<uint8_t>());
       std::vector<uint8_t>* chunk = &header_code_and_maps_chunks_.back();
-      size_t size = sizeof(method_header) + code_size + vmap_table.size() + mapping_table.size();
+      size_t size = sizeof(method_header) + code_size + vmap_table.size() + mapping_table.size() +
+          gc_map.size();
       size_t code_offset = compiled_method->AlignCode(size - code_size);
       size_t padding = code_offset - (size - code_size);
       chunk->reserve(padding + size);
@@ -75,6 +79,7 @@
       memcpy(&(*chunk)[0], &method_header, sizeof(method_header));
       chunk->insert(chunk->begin(), vmap_table.begin(), vmap_table.end());
       chunk->insert(chunk->begin(), mapping_table.begin(), mapping_table.end());
+      chunk->insert(chunk->begin(), gc_map.begin(), gc_map.end());
       chunk->insert(chunk->begin(), padding, 0);
       chunk->insert(chunk->end(), code->begin(), code->end());
       CHECK_EQ(padding + size, chunk->size());