Fix make headerscheck

In the wake of commits dac048f71 and ecaf7c5df, `make headerscheck`
no longer generated all headers that are included by other headers,
causing headerscheck/cpluspluscheck to fail. To fix, backpatch enough
makefile rules from 721856ff2 to generate all required headers.

Reported by Marina Polyakova
Backpatch to version 16 only, as the issue is not present on master

Discussion: https://postgr.es/m/231ea1127719b2b3d6d1c05f75808981%40postgrespro.ru

src/backend/Makefile

@@ -160,7 +160,7 @@ submake-utils-headers:
 
 .PHONY: generated-headers
 
-generated-headers: $(top_builddir)/src/include/storage/lwlocknames.h submake-catalog-headers submake-nodes-headers submake-utils-headers
+generated-headers: $(top_builddir)/src/include/storage/lwlocknames.h submake-catalog-headers submake-nodes-headers submake-utils-headers parser/gram.h
 
 $(top_builddir)/src/include/storage/lwlocknames.h: storage/lmgr/lwlocknames.h
 	prereqdir=`cd '$(dir $<)' >/dev/null && pwd` && \

src/backend/utils/Makefile

@@ -38,9 +38,12 @@ all: distprep probes.h generated-header-symlinks
 
 distprep: fmgr-stamp errcodes.h
 
-.PHONY: generated-header-symlinks
+.PHONY: generated-header-symlinks submake-adt-headers
 
-generated-header-symlinks: $(top_builddir)/src/include/utils/header-stamp $(top_builddir)/src/include/utils/probes.h
+generated-header-symlinks: $(top_builddir)/src/include/utils/header-stamp $(top_builddir)/src/include/utils/probes.h submake-adt-headers
+
+submake-adt-headers:
+	$(MAKE) -C adt jsonpath_gram.h
 
 $(SUBDIRS:%=%-recursive): fmgr-stamp errcodes.h