[Bug] same implicit value for different types causes mismatch error

[0rphon]

🐛 Bug Report

using the same implicit value for different types causes leo to throw an error

Code snippet to reproduce

function main () {
    let x: u8 = 2;
    let z: u16 = 2;
}

Stack trace & error message

 Compiling Starting...
 Compiling Compiling main program... ("d:\\Work\\leo_playground\\src/main.leo")
 Compiling     --> "d:\\Work\\leo_playground\\src/main.leo": 2:5
     |
   2 |      let x: u8 = 2;
     |      ^^^^^^^^^^^^^^
     |
     = Mismatched types. Expected type `u8`, found type `u16`.

Your Environment

• leo's latest master commit ed395a0
• rustc 1.49.0 (e1884a8e3 2020-12-29)
• windows 10 build 10.0.19042.746

[0rphon]

fixed by asg (2657c44)