[tests] Disable test behind flag 'typedarray_precision_check' (see #7407)

tests/unit/src/unitstd/haxe/io/Float32Array.unit.hx

@@ -9,7 +9,10 @@ b[1] == 1.25;
 
 // check loss of precision due to 32 bits
 b[1] = 8589934591.;
+
+#if typedarray_precision_check // see issue #7407
 b[1] == 8589934592.;
+#end
 
 
 // set