Fix bug in heap translation #158

Job	Run time
build-test (ubuntu-latest, gcc, amd64)	20m 43s
build-test (ubuntu-latest, gcc, c)	26m 12s
build-test (ubuntu-latest, clang, amd64)	21m 27s
build-test (ubuntu-latest, clang, c)	29m 23s
build-test (ubuntu-latest, clang, llvm)	30m 9s
build-test (macos-13, gcc, amd64)	44m 31s
build-test (macos-13, gcc, c)	49m 58s
build-test (macos-13, clang, amd64)	43m 20s
build-test (macos-13, clang, c)	49m 45s
build-test (macos-13, clang, llvm)	51m 12s
build-test (windows-latest, gcc, amd64)	42m 0s
	6h 48m 40s

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