Benchmark modifications

src/backend/access/common/heaptuple.c

src/backend/jit/llvm/llvmjit_expr.c

src/backend/jit/llvm/llvmjit_inline.cpp

src/backend/parser/analyze.c

src/backend/parser/parse_func.c

src/ext/kmeans_ext.c

src/ext/lambda_ext.c

src/ext/pagerank_ext.c

src/include/jit/llvmjit.h