heap: more updates with some fixes. #20858

Job	Run time
manifest-check	53s
LP64-WIP	3m 29s
build-linux (mnfst, mtl lnl)	5m 27s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	6m 6s
build-linux (zmain, ptl)	3m 57s
build-linux (zmain, mtl lnl)	5m 17s
build-linux (zmain, tgl tgl-h)	5m 19s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 13s
build-linux (mnfst, tgl tgl-h)	4m 48s
build-linux (-d, mnfst, lnl)	3m 57s
build-linux (mnfst, ptl)	4m 49s
build-linux (mnfst, --all)	15m 28s
build-windows (ptl)	5m 43s
build-windows (imx8 imx8x imx8m imx8ulp)	8m 9s
build-windows (mtl lnl)	6m 44s
build-windows (tgl tgl-h)	6m 43s
build-windows (-d, lnl)	5m 56s
compare-linux-win	1m 34s
	1h 40m 32s

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