javascript/Makefile: Fix unrepresentable float error by using clamp.
Otherwise converting large floats to ints will fail (as seen by the
builtin_float_hash.py test).
@@ -44,7 +44,7 @@ OBJ = $(PY_O)
OBJ += $(addprefix $(BUILD)/, $(SRC_LIB:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
-JSFLAGS = -O0 -s EXPORTED_FUNCTIONS="['_mp_js_init', '_mp_js_init_repl', '_mp_js_do_str', '_mp_js_process_char', '_mp_hal_get_interrupt_char', '_mp_keyboard_interrupt']" -s EXTRA_EXPORTED_RUNTIME_METHODS="['ccall', 'cwrap']" --memory-init-file 0 --js-library library.js
+JSFLAGS = -O0 -s EXPORTED_FUNCTIONS="['_mp_js_init', '_mp_js_init_repl', '_mp_js_do_str', '_mp_js_process_char', '_mp_hal_get_interrupt_char', '_mp_keyboard_interrupt']" -s EXTRA_EXPORTED_RUNTIME_METHODS="['ccall', 'cwrap']" -s "BINARYEN_TRAP_MODE='clamp'" --memory-init-file 0 --js-library library.js
all: $(BUILD)/micropython.js
