Return u32 in @wasmMemorySize instead of i32
Return u32 in @wasmMemorySize instead of i32

andrewrk/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,zig-lang/zig,zig-lang/zig