Add heap profiling infrastructure

Summary:
This change squashes the following diffs and adds some additional
changes needed for compatability with OTP 26.

D48490465
D48455502
D48215686
D48131895
D48132518
D48084944
D48005114
D47964855
D47962223
D47780292
D47138491
D47131686
D47242900
D47128767
D46212162
D46043094

Test Plan:
Ran various combinations of `erlang:heap_dump` and verified that the
profile data looks okay.

Reviewers: potatosaladx, zeyu, skatepalli, zerth, mittalanshul, #whatsapp_clr

Reviewed By: skatepalli

Subscribers: yingyingxiao

Differential Revision: https://phabricator.intern.facebook.com/D48825426

Tasks: T154046229

Privacy Context Container: L1141030

Author: lexprfuncall

.gitignore

@@ -362,3 +362,7 @@ JAVADOC-GENERATED
 /lib/xmerl/src/xmerl_b64Bin.erl
 /lib/xmerl/src/xmerl_xpath_parse.erl
 /lib/xmerl/test/xmerl_test.erl
+
+# wa_scripts
+/wa_scripts/round-up-text-segment
+wa_scripts/round-up-text-segment.o

erts/emulator/Makefile.in

@@ -1125,7 +1125,8 @@ RUN_OBJS += \
 	$(OBJDIR)/erl_global_literals.o \
 	$(OBJDIR)/beam_file.o \
 	$(OBJDIR)/beam_types.o \
-	$(OBJDIR)/erl_term_hashing.o
+	$(OBJDIR)/erl_term_hashing.o \
+	$(OBJDIR)/erl_hdump.o
 
 LTTNG_OBJS = $(OBJDIR)/erlang_lttng.o
 

erts/emulator/beam/atom.names

@@ -346,6 +346,7 @@ atom group_leader
 atom handle
 atom have_dt_utag
 atom heap_block_size
+atom heap_dump
 atom heap_size
 atom heap_sizes
 atom heap_type